Home / 224,612.18-309,960.24-129,118.04

Finding the Fourth Proportional to 224,612.18, 309,960.24 and 129,118.04

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Solution

The fourth proportional to 224,612.18, 309,960.24 and 129,118.04 is: 178,180.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,612.18 : 309,960.24 = 129,118.04 : x
  2. Step 2: Convert to fraction form
    224,612.18/309,960.24 = 129,118.04/x
  3. Step 3: Cross multiply
    224,612.18x = 309,960.24 × 129,118.04
  4. Step 4: Simplify right side
    224,612.18x = 40,021,458,666.73
  5. Step 5: Solve for x
    x = 40,021,458,666.73/224,612.18
  6. Step 6: Final answer
    x = 178,180.27

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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.