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Finding the Fourth Proportional to 341,838.45, 512,757.90 and 89,118.32

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Solution

The fourth proportional to 341,838.45, 512,757.90 and 89,118.32 is: 133,677.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,838.45 : 512,757.90 = 89,118.32 : x
  2. Step 2: Convert to fraction form
    341,838.45/512,757.90 = 89,118.32/x
  3. Step 3: Cross multiply
    341,838.45x = 512,757.90 × 89,118.32
  4. Step 4: Simplify right side
    341,838.45x = 45,696,120,050.94
  5. Step 5: Solve for x
    x = 45,696,120,050.94/341,838.45
  6. Step 6: Final answer
    x = 133,677.53

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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.