Home / 218,518.05-301,565.12-132,479.72

Finding the Fourth Proportional to 218,518.05, 301,565.12 and 132,479.72

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Solution

The fourth proportional to 218,518.05, 301,565.12 and 132,479.72 is: 182,828.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,518.05 : 301,565.12 = 132,479.72 : x
  2. Step 2: Convert to fraction form
    218,518.05/301,565.12 = 132,479.72/x
  3. Step 3: Cross multiply
    218,518.05x = 301,565.12 × 132,479.72
  4. Step 4: Simplify right side
    218,518.05x = 39,951,260,489.14
  5. Step 5: Solve for x
    x = 39,951,260,489.14/218,518.05
  6. Step 6: Final answer
    x = 182,828.19

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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.