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Finding the Fourth Proportional to 239,493.08, 359,276.52 and 81,684.66

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Solution

The fourth proportional to 239,493.08, 359,276.52 and 81,684.66 is: 122,539.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,493.08 : 359,276.52 = 81,684.66 : x
  2. Step 2: Convert to fraction form
    239,493.08/359,276.52 = 81,684.66/x
  3. Step 3: Cross multiply
    239,493.08x = 359,276.52 × 81,684.66
  4. Step 4: Simplify right side
    239,493.08x = 29,347,380,382.18
  5. Step 5: Solve for x
    x = 29,347,380,382.18/239,493.08
  6. Step 6: Final answer
    x = 122,539.58

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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.