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Finding the Fourth Proportional to 247,449.52, 370,843.80 and 128,872.24

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Solution

The fourth proportional to 247,449.52, 370,843.80 and 128,872.24 is: 193,136.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,449.52 : 370,843.80 = 128,872.24 : x
  2. Step 2: Convert to fraction form
    247,449.52/370,843.80 = 128,872.24/x
  3. Step 3: Cross multiply
    247,449.52x = 370,843.80 × 128,872.24
  4. Step 4: Simplify right side
    247,449.52x = 47,791,471,196.11
  5. Step 5: Solve for x
    x = 47,791,471,196.11/247,449.52
  6. Step 6: Final answer
    x = 193,136.25

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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.