Home / 317,402.10-476,227.08-139,784.28

Finding the Fourth Proportional to 317,402.10, 476,227.08 and 139,784.28

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Solution

The fourth proportional to 317,402.10, 476,227.08 and 139,784.28 is: 209,731.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,402.10 : 476,227.08 = 139,784.28 : x
  2. Step 2: Convert to fraction form
    317,402.10/476,227.08 = 139,784.28/x
  3. Step 3: Cross multiply
    317,402.10x = 476,227.08 × 139,784.28
  4. Step 4: Simplify right side
    317,402.10x = 66,569,059,494.30
  5. Step 5: Solve for x
    x = 66,569,059,494.30/317,402.10
  6. Step 6: Final answer
    x = 209,731.00

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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.