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Finding the Fourth Proportional to 252,650.68, 348,655.80 and 139,471

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Solution

The fourth proportional to 252,650.68, 348,655.80 and 139,471 is: 192,468.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,650.68 : 348,655.80 = 139,471 : x
  2. Step 2: Convert to fraction form
    252,650.68/348,655.80 = 139,471/x
  3. Step 3: Cross multiply
    252,650.68x = 348,655.80 × 139,471
  4. Step 4: Simplify right side
    252,650.68x = 48,627,373,081.80
  5. Step 5: Solve for x
    x = 48,627,373,081.80/252,650.68
  6. Step 6: Final answer
    x = 192,468.80

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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.