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Finding the Fourth Proportional to 252,613.72, 348,609.78 and 139,436.44

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Solution

The fourth proportional to 252,613.72, 348,609.78 and 139,436.44 is: 192,423.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,613.72 : 348,609.78 = 139,436.44 : x
  2. Step 2: Convert to fraction form
    252,613.72/348,609.78 = 139,436.44/x
  3. Step 3: Cross multiply
    252,613.72x = 348,609.78 × 139,436.44
  4. Step 4: Simplify right side
    252,613.72x = 48,608,906,672.38
  5. Step 5: Solve for x
    x = 48,608,906,672.38/252,613.72
  6. Step 6: Final answer
    x = 192,423.86

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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.