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Finding the Fourth Proportional to 252,357.84, 348,253.92 and 139,187.88

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Solution

The fourth proportional to 252,357.84, 348,253.92 and 139,187.88 is: 192,079.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,357.84 : 348,253.92 = 139,187.88 : x
  2. Step 2: Convert to fraction form
    252,357.84/348,253.92 = 139,187.88/x
  3. Step 3: Cross multiply
    252,357.84x = 348,253.92 × 139,187.88
  4. Step 4: Simplify right side
    252,357.84x = 48,472,724,826.49
  5. Step 5: Solve for x
    x = 48,472,724,826.49/252,357.84
  6. Step 6: Final answer
    x = 192,079.33

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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.