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Finding the Fourth Proportional to 341,858.43, 512,788.02 and 89,138.70

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Solution

The fourth proportional to 341,858.43, 512,788.02 and 89,138.70 is: 133,708.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,858.43 : 512,788.02 = 89,138.70 : x
  2. Step 2: Convert to fraction form
    341,858.43/512,788.02 = 89,138.70/x
  3. Step 3: Cross multiply
    341,858.43x = 512,788.02 × 89,138.70
  4. Step 4: Simplify right side
    341,858.43x = 45,709,257,478.37
  5. Step 5: Solve for x
    x = 45,709,257,478.37/341,858.43
  6. Step 6: Final answer
    x = 133,708.15

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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.