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Finding the Fourth Proportional to 240,951.96, 361,470.24 and 81,012.60

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Solution

The fourth proportional to 240,951.96, 361,470.24 and 81,012.60 is: 121,533.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,951.96 : 361,470.24 = 81,012.60 : x
  2. Step 2: Convert to fraction form
    240,951.96/361,470.24 = 81,012.60/x
  3. Step 3: Cross multiply
    240,951.96x = 361,470.24 × 81,012.60
  4. Step 4: Simplify right side
    240,951.96x = 29,283,643,965.02
  5. Step 5: Solve for x
    x = 29,283,643,965.02/240,951.96
  6. Step 6: Final answer
    x = 121,533.12

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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.