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Finding the Fourth Proportional to 240,557.76, 360,916.78 and 80,649.50

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Solution

The fourth proportional to 240,557.76, 360,916.78 and 80,649.50 is: 121,001.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,557.76 : 360,916.78 = 80,649.50 : x
  2. Step 2: Convert to fraction form
    240,557.76/360,916.78 = 80,649.50/x
  3. Step 3: Cross multiply
    240,557.76x = 360,916.78 × 80,649.50
  4. Step 4: Simplify right side
    240,557.76x = 29,107,757,848.61
  5. Step 5: Solve for x
    x = 29,107,757,848.61/240,557.76
  6. Step 6: Final answer
    x = 121,001.12

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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.