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Finding the Fourth Proportional to 253,656.80, 350,046.24 and 140,479.44

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Solution

The fourth proportional to 253,656.80, 350,046.24 and 140,479.44 is: 193,861.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,656.80 : 350,046.24 = 140,479.44 : x
  2. Step 2: Convert to fraction form
    253,656.80/350,046.24 = 140,479.44/x
  3. Step 3: Cross multiply
    253,656.80x = 350,046.24 × 140,479.44
  4. Step 4: Simplify right side
    253,656.80x = 49,174,299,769.31
  5. Step 5: Solve for x
    x = 49,174,299,769.31/253,656.80
  6. Step 6: Final answer
    x = 193,861.55

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1.5x scale

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.