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Finding the Fourth Proportional to 341,936.60, 512,472.90 and 131,293.40

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Solution

The fourth proportional to 341,936.60, 512,472.90 and 131,293.40 is: 196,774.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,936.60 : 512,472.90 = 131,293.40 : x
  2. Step 2: Convert to fraction form
    341,936.60/512,472.90 = 131,293.40/x
  3. Step 3: Cross multiply
    341,936.60x = 512,472.90 × 131,293.40
  4. Step 4: Simplify right side
    341,936.60x = 67,284,309,448.86
  5. Step 5: Solve for x
    x = 67,284,309,448.86/341,936.60
  6. Step 6: Final answer
    x = 196,774.22

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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.