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Finding the Fourth Proportional to 301,121.74, 415,502.22 and 172,037.71

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Solution

The fourth proportional to 301,121.74, 415,502.22 and 172,037.71 is: 237,385.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,121.74 : 415,502.22 = 172,037.71 : x
  2. Step 2: Convert to fraction form
    301,121.74/415,502.22 = 172,037.71/x
  3. Step 3: Cross multiply
    301,121.74x = 415,502.22 × 172,037.71
  4. Step 4: Simplify right side
    301,121.74x = 71,482,050,428.72
  5. Step 5: Solve for x
    x = 71,482,050,428.72/301,121.74
  6. Step 6: Final answer
    x = 237,385.88

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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.