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Finding the Fourth Proportional to 199,873.28, 299,892.98 and 87,495.66

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Solution

The fourth proportional to 199,873.28, 299,892.98 and 87,495.66 is: 131,279.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,873.28 : 299,892.98 = 87,495.66 : x
  2. Step 2: Convert to fraction form
    199,873.28/299,892.98 = 87,495.66/x
  3. Step 3: Cross multiply
    199,873.28x = 299,892.98 × 87,495.66
  4. Step 4: Simplify right side
    199,873.28x = 26,239,334,433.21
  5. Step 5: Solve for x
    x = 26,239,334,433.21/199,873.28
  6. Step 6: Final answer
    x = 131,279.85

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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.