Home / 331,715.95-497,279.33-129,265.16

Finding the Fourth Proportional to 331,715.95, 497,279.33 and 129,265.16

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Solution

The fourth proportional to 331,715.95, 497,279.33 and 129,265.16 is: 193,782.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,715.95 : 497,279.33 = 129,265.16 : x
  2. Step 2: Convert to fraction form
    331,715.95/497,279.33 = 129,265.16/x
  3. Step 3: Cross multiply
    331,715.95x = 497,279.33 × 129,265.16
  4. Step 4: Simplify right side
    331,715.95x = 64,280,891,237.11
  5. Step 5: Solve for x
    x = 64,280,891,237.11/331,715.95
  6. Step 6: Final answer
    x = 193,782.94

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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.