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Finding the Fourth Proportional to 216,660.18, 325,103.61 and 88,671.47

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Solution

The fourth proportional to 216,660.18, 325,103.61 and 88,671.47 is: 133,053.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,660.18 : 325,103.61 = 88,671.47 : x
  2. Step 2: Convert to fraction form
    216,660.18/325,103.61 = 88,671.47/x
  3. Step 3: Cross multiply
    216,660.18x = 325,103.61 × 88,671.47
  4. Step 4: Simplify right side
    216,660.18x = 28,827,414,668.49
  5. Step 5: Solve for x
    x = 28,827,414,668.49/216,660.18
  6. Step 6: Final answer
    x = 133,053.59

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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.