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Finding the Fourth Proportional to 538,300.73, 807,451.08 and 159,191.91

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Solution

The fourth proportional to 538,300.73, 807,451.08 and 159,191.91 is: 238,787.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,300.73 : 807,451.08 = 159,191.91 : x
  2. Step 2: Convert to fraction form
    538,300.73/807,451.08 = 159,191.91/x
  3. Step 3: Cross multiply
    538,300.73x = 807,451.08 × 159,191.91
  4. Step 4: Simplify right side
    538,300.73x = 128,539,679,656.76
  5. Step 5: Solve for x
    x = 128,539,679,656.76/538,300.73
  6. Step 6: Final answer
    x = 238,787.86

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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.