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Finding the Fourth Proportional to 218,565.60, 301,617.60 and 123,081.68

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Solution

The fourth proportional to 218,565.60, 301,617.60 and 123,081.68 is: 169,851.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,565.60 : 301,617.60 = 123,081.68 : x
  2. Step 2: Convert to fraction form
    218,565.60/301,617.60 = 123,081.68/x
  3. Step 3: Cross multiply
    218,565.60x = 301,617.60 × 123,081.68
  4. Step 4: Simplify right side
    218,565.60x = 37,123,600,925.57
  5. Step 5: Solve for x
    x = 37,123,600,925.57/218,565.60
  6. Step 6: Final answer
    x = 169,851.07

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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.