Home / 331,715.46-497,278.52-129,264.70

Finding the Fourth Proportional to 331,715.46, 497,278.52 and 129,264.70

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Solution

The fourth proportional to 331,715.46, 497,278.52 and 129,264.70 is: 193,782.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,715.46 : 497,278.52 = 129,264.70 : x
  2. Step 2: Convert to fraction form
    331,715.46/497,278.52 = 129,264.70/x
  3. Step 3: Cross multiply
    331,715.46x = 497,278.52 × 129,264.70
  4. Step 4: Simplify right side
    331,715.46x = 64,280,558,704.24
  5. Step 5: Solve for x
    x = 64,280,558,704.24/331,715.46
  6. Step 6: Final answer
    x = 193,782.22

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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.