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Finding the Fourth Proportional to 225,762.83, 311,566.71 and 125,160.83

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Solution

The fourth proportional to 225,762.83, 311,566.71 and 125,160.83 is: 172,729.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,762.83 : 311,566.71 = 125,160.83 : x
  2. Step 2: Convert to fraction form
    225,762.83/311,566.71 = 125,160.83/x
  3. Step 3: Cross multiply
    225,762.83x = 311,566.71 × 125,160.83
  4. Step 4: Simplify right side
    225,762.83x = 38,995,948,023.97
  5. Step 5: Solve for x
    x = 38,995,948,023.97/225,762.83
  6. Step 6: Final answer
    x = 172,729.71

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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.