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Finding the Fourth Proportional to 238,872.40, 358,308.60 and 133,677.70

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Solution

The fourth proportional to 238,872.40, 358,308.60 and 133,677.70 is: 200,516.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,872.40 : 358,308.60 = 133,677.70 : x
  2. Step 2: Convert to fraction form
    238,872.40/358,308.60 = 133,677.70/x
  3. Step 3: Cross multiply
    238,872.40x = 358,308.60 × 133,677.70
  4. Step 4: Simplify right side
    238,872.40x = 47,897,869,538.22
  5. Step 5: Solve for x
    x = 47,897,869,538.22/238,872.40
  6. Step 6: Final answer
    x = 200,516.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.