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Finding the Fourth Proportional to 427,701.90, 590,207.58 and 243,947.73

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Solution

The fourth proportional to 427,701.90, 590,207.58 and 243,947.73 is: 336,635.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,701.90 : 590,207.58 = 243,947.73 : x
  2. Step 2: Convert to fraction form
    427,701.90/590,207.58 = 243,947.73/x
  3. Step 3: Cross multiply
    427,701.90x = 590,207.58 × 243,947.73
  4. Step 4: Simplify right side
    427,701.90x = 143,979,799,369.79
  5. Step 5: Solve for x
    x = 143,979,799,369.79/427,701.90
  6. Step 6: Final answer
    x = 336,635.87

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.