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Finding the Fourth Proportional to 269,149, 371,425.62 and 156,037.36

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Solution

The fourth proportional to 269,149, 371,425.62 and 156,037.36 is: 215,331.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,149 : 371,425.62 = 156,037.36 : x
  2. Step 2: Convert to fraction form
    269,149/371,425.62 = 156,037.36/x
  3. Step 3: Cross multiply
    269,149x = 371,425.62 × 156,037.36
  4. Step 4: Simplify right side
    269,149x = 57,956,273,181.16
  5. Step 5: Solve for x
    x = 57,956,273,181.16/269,149
  6. Step 6: Final answer
    x = 215,331.56

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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.