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Finding the Fourth Proportional to 238,097.70, 328,581.22 and 130,671.55

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Solution

The fourth proportional to 238,097.70, 328,581.22 and 130,671.55 is: 180,330.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,097.70 : 328,581.22 = 130,671.55 : x
  2. Step 2: Convert to fraction form
    238,097.70/328,581.22 = 130,671.55/x
  3. Step 3: Cross multiply
    238,097.70x = 328,581.22 × 130,671.55
  4. Step 4: Simplify right side
    238,097.70x = 42,936,217,318.29
  5. Step 5: Solve for x
    x = 42,936,217,318.29/238,097.70
  6. Step 6: Final answer
    x = 180,330.25

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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.