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Finding the Fourth Proportional to 219,479.12, 329,238.16 and 61,708.96

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Solution

The fourth proportional to 219,479.12, 329,238.16 and 61,708.96 is: 92,568.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,479.12 : 329,238.16 = 61,708.96 : x
  2. Step 2: Convert to fraction form
    219,479.12/329,238.16 = 61,708.96/x
  3. Step 3: Cross multiply
    219,479.12x = 329,238.16 × 61,708.96
  4. Step 4: Simplify right side
    219,479.12x = 20,316,944,445.91
  5. Step 5: Solve for x
    x = 20,316,944,445.91/219,479.12
  6. Step 6: Final answer
    x = 92,568.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.