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Finding the Fourth Proportional to 215,565.60, 297,457.80 and 124,950

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Solution

The fourth proportional to 215,565.60, 297,457.80 and 124,950 is: 172,417.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,565.60 : 297,457.80 = 124,950 : x
  2. Step 2: Convert to fraction form
    215,565.60/297,457.80 = 124,950/x
  3. Step 3: Cross multiply
    215,565.60x = 297,457.80 × 124,950
  4. Step 4: Simplify right side
    215,565.60x = 37,167,352,110
  5. Step 5: Solve for x
    x = 37,167,352,110/215,565.60
  6. Step 6: Final answer
    x = 172,417.83

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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.