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Finding the Fourth Proportional to 252,249.57, 348,099.71 and 137,529.21

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Solution

The fourth proportional to 252,249.57, 348,099.71 and 137,529.21 is: 189,787.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,249.57 : 348,099.71 = 137,529.21 : x
  2. Step 2: Convert to fraction form
    252,249.57/348,099.71 = 137,529.21/x
  3. Step 3: Cross multiply
    252,249.57x = 348,099.71 × 137,529.21
  4. Step 4: Simplify right side
    252,249.57x = 47,873,877,591.10
  5. Step 5: Solve for x
    x = 47,873,877,591.10/252,249.57
  6. Step 6: Final answer
    x = 189,787.75

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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.