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Finding the Fourth Proportional to 341,645.60, 512,687.10 and 199,490.60

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Solution

The fourth proportional to 341,645.60, 512,687.10 and 199,490.60 is: 299,363.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,645.60 : 512,687.10 = 199,490.60 : x
  2. Step 2: Convert to fraction form
    341,645.60/512,687.10 = 199,490.60/x
  3. Step 3: Cross multiply
    341,645.60x = 512,687.10 × 199,490.60
  4. Step 4: Simplify right side
    341,645.60x = 102,276,257,191.26
  5. Step 5: Solve for x
    x = 102,276,257,191.26/341,645.60
  6. Step 6: Final answer
    x = 299,363.60

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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.