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Finding the Fourth Proportional to 224,160.50, 309,337.45 and 128,659.68

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Solution

The fourth proportional to 224,160.50, 309,337.45 and 128,659.68 is: 177,548.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,160.50 : 309,337.45 = 128,659.68 : x
  2. Step 2: Convert to fraction form
    224,160.50/309,337.45 = 128,659.68/x
  3. Step 3: Cross multiply
    224,160.50x = 309,337.45 × 128,659.68
  4. Step 4: Simplify right side
    224,160.50x = 39,799,257,007.37
  5. Step 5: Solve for x
    x = 39,799,257,007.37/224,160.50
  6. Step 6: Final answer
    x = 177,548.04

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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.