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Finding the Fourth Proportional to 258,229.25, 387,358.46 and 92,017.25

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Solution

The fourth proportional to 258,229.25, 387,358.46 and 92,017.25 is: 138,031.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,229.25 : 387,358.46 = 92,017.25 : x
  2. Step 2: Convert to fraction form
    258,229.25/387,358.46 = 92,017.25/x
  3. Step 3: Cross multiply
    258,229.25x = 387,358.46 × 92,017.25
  4. Step 4: Simplify right side
    258,229.25x = 35,643,659,793.35
  5. Step 5: Solve for x
    x = 35,643,659,793.35/258,229.25
  6. Step 6: Final answer
    x = 138,031.07

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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.