Home / 371,905.59-513,233.10-202,140.12

Finding the Fourth Proportional to 371,905.59, 513,233.10 and 202,140.12

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Solution

The fourth proportional to 371,905.59, 513,233.10 and 202,140.12 is: 278,955.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,905.59 : 513,233.10 = 202,140.12 : x
  2. Step 2: Convert to fraction form
    371,905.59/513,233.10 = 202,140.12/x
  3. Step 3: Cross multiply
    371,905.59x = 513,233.10 × 202,140.12
  4. Step 4: Simplify right side
    371,905.59x = 103,745,000,421.97
  5. Step 5: Solve for x
    x = 103,745,000,421.97/371,905.59
  6. Step 6: Final answer
    x = 278,955.21

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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.