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Finding the Fourth Proportional to 247,825.60, 342,000.18 and 140,415.52

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Solution

The fourth proportional to 247,825.60, 342,000.18 and 140,415.52 is: 193,773.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,825.60 : 342,000.18 = 140,415.52 : x
  2. Step 2: Convert to fraction form
    247,825.60/342,000.18 = 140,415.52/x
  3. Step 3: Cross multiply
    247,825.60x = 342,000.18 × 140,415.52
  4. Step 4: Simplify right side
    247,825.60x = 48,022,133,114.79
  5. Step 5: Solve for x
    x = 48,022,133,114.79/247,825.60
  6. Step 6: Final answer
    x = 193,773.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.