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Finding the Fourth Proportional to 238,147.29, 328,631.58 and 130,715.37

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Solution

The fourth proportional to 238,147.29, 328,631.58 and 130,715.37 is: 180,380.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,147.29 : 328,631.58 = 130,715.37 : x
  2. Step 2: Convert to fraction form
    238,147.29/328,631.58 = 130,715.37/x
  3. Step 3: Cross multiply
    238,147.29x = 328,631.58 × 130,715.37
  4. Step 4: Simplify right side
    238,147.29x = 42,957,198,573.38
  5. Step 5: Solve for x
    x = 42,957,198,573.38/238,147.29
  6. Step 6: Final answer
    x = 180,380.80

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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.