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Finding the Fourth Proportional to 430,908.90, 646,363.35 and 244,284.90

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Solution

The fourth proportional to 430,908.90, 646,363.35 and 244,284.90 is: 366,427.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,908.90 : 646,363.35 = 244,284.90 : x
  2. Step 2: Convert to fraction form
    430,908.90/646,363.35 = 244,284.90/x
  3. Step 3: Cross multiply
    430,908.90x = 646,363.35 × 244,284.90
  4. Step 4: Simplify right side
    430,908.90x = 157,896,806,318.42
  5. Step 5: Solve for x
    x = 157,896,806,318.42/430,908.90
  6. Step 6: Final answer
    x = 366,427.35

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.