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Finding the Fourth Proportional to 199,501.34, 299,362.17 and 81,255.92

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Solution

The fourth proportional to 199,501.34, 299,362.17 and 81,255.92 is: 121,928.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,501.34 : 299,362.17 = 81,255.92 : x
  2. Step 2: Convert to fraction form
    199,501.34/299,362.17 = 81,255.92/x
  3. Step 3: Cross multiply
    199,501.34x = 299,362.17 × 81,255.92
  4. Step 4: Simplify right side
    199,501.34x = 24,324,948,536.55
  5. Step 5: Solve for x
    x = 24,324,948,536.55/199,501.34
  6. Step 6: Final answer
    x = 121,928.75

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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.