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Finding the Fourth Proportional to 263,471.52, 395,248.59 and 85,937.55

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Solution

The fourth proportional to 263,471.52, 395,248.59 and 85,937.55 is: 128,919.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,471.52 : 395,248.59 = 85,937.55 : x
  2. Step 2: Convert to fraction form
    263,471.52/395,248.59 = 85,937.55/x
  3. Step 3: Cross multiply
    263,471.52x = 395,248.59 × 85,937.55
  4. Step 4: Simplify right side
    263,471.52x = 33,966,695,465.55
  5. Step 5: Solve for x
    x = 33,966,695,465.55/263,471.52
  6. Step 6: Final answer
    x = 128,919.80

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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.