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Finding the Fourth Proportional to 538,272.41, 806,805.15 and 218,349.95

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Solution

The fourth proportional to 538,272.41, 806,805.15 and 218,349.95 is: 327,280.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,272.41 : 806,805.15 = 218,349.95 : x
  2. Step 2: Convert to fraction form
    538,272.41/806,805.15 = 218,349.95/x
  3. Step 3: Cross multiply
    538,272.41x = 806,805.15 × 218,349.95
  4. Step 4: Simplify right side
    538,272.41x = 176,165,864,162.24
  5. Step 5: Solve for x
    x = 176,165,864,162.24/538,272.41
  6. Step 6: Final answer
    x = 327,280.13

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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.