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Finding the Fourth Proportional to 610.76, 916.12 and 200.23

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Solution

The fourth proportional to 610.76, 916.12 and 200.23 is: 300.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    610.76 : 916.12 = 200.23 : x
  2. Step 2: Convert to fraction form
    610.76/916.12 = 200.23/x
  3. Step 3: Cross multiply
    610.76x = 916.12 × 200.23
  4. Step 4: Simplify right side
    610.76x = 183,434.71
  5. Step 5: Solve for x
    x = 183,434.71/610.76
  6. Step 6: Final answer
    x = 300.34

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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.