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Finding the Fourth Proportional to 218,805.24, 328,207.86 and 61,033.44

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Solution

The fourth proportional to 218,805.24, 328,207.86 and 61,033.44 is: 91,550.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,805.24 : 328,207.86 = 61,033.44 : x
  2. Step 2: Convert to fraction form
    218,805.24/328,207.86 = 61,033.44/x
  3. Step 3: Cross multiply
    218,805.24x = 328,207.86 × 61,033.44
  4. Step 4: Simplify right side
    218,805.24x = 20,031,654,730.84
  5. Step 5: Solve for x
    x = 20,031,654,730.84/218,805.24
  6. Step 6: Final answer
    x = 91,550.16

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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.