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Finding the Fourth Proportional to 275,999.60, 413,489.10 and 157,318.40

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Solution

The fourth proportional to 275,999.60, 413,489.10 and 157,318.40 is: 235,686.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,999.60 : 413,489.10 = 157,318.40 : x
  2. Step 2: Convert to fraction form
    275,999.60/413,489.10 = 157,318.40/x
  3. Step 3: Cross multiply
    275,999.60x = 413,489.10 × 157,318.40
  4. Step 4: Simplify right side
    275,999.60x = 65,049,443,629.44
  5. Step 5: Solve for x
    x = 65,049,443,629.44/275,999.60
  6. Step 6: Final answer
    x = 235,686.73

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1.5x scale

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.