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Finding the Fourth Proportional to 219,489.16, 328,890.30 and 169,691.98

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Solution

The fourth proportional to 219,489.16, 328,890.30 and 169,691.98 is: 254,272.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,489.16 : 328,890.30 = 169,691.98 : x
  2. Step 2: Convert to fraction form
    219,489.16/328,890.30 = 169,691.98/x
  3. Step 3: Cross multiply
    219,489.16x = 328,890.30 × 169,691.98
  4. Step 4: Simplify right side
    219,489.16x = 55,810,046,209.79
  5. Step 5: Solve for x
    x = 55,810,046,209.79/219,489.16
  6. Step 6: Final answer
    x = 254,272.45

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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.