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Finding the Fourth Proportional to 252,648.69, 348,655.29 and 139,471.44

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Solution

The fourth proportional to 252,648.69, 348,655.29 and 139,471.44 is: 192,470.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,648.69 : 348,655.29 = 139,471.44 : x
  2. Step 2: Convert to fraction form
    252,648.69/348,655.29 = 139,471.44/x
  3. Step 3: Cross multiply
    252,648.69x = 348,655.29 × 139,471.44
  4. Step 4: Simplify right side
    252,648.69x = 48,627,455,359.92
  5. Step 5: Solve for x
    x = 48,627,455,359.92/252,648.69
  6. Step 6: Final answer
    x = 192,470.64

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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.