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Finding the Fourth Proportional to 225,772.60, 311,580.17 and 125,170.60

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Solution

The fourth proportional to 225,772.60, 311,580.17 and 125,170.60 is: 172,743.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,772.60 : 311,580.17 = 125,170.60 : x
  2. Step 2: Convert to fraction form
    225,772.60/311,580.17 = 125,170.60/x
  3. Step 3: Cross multiply
    225,772.60x = 311,580.17 × 125,170.60
  4. Step 4: Simplify right side
    225,772.60x = 39,000,676,201.15
  5. Step 5: Solve for x
    x = 39,000,676,201.15/225,772.60
  6. Step 6: Final answer
    x = 172,743.18

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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.