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Finding the Fourth Proportional to 168,200.79, 252,301.20 and 79,463.28

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Solution

The fourth proportional to 168,200.79, 252,301.20 and 79,463.28 is: 119,194.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,200.79 : 252,301.20 = 79,463.28 : x
  2. Step 2: Convert to fraction form
    168,200.79/252,301.20 = 79,463.28/x
  3. Step 3: Cross multiply
    168,200.79x = 252,301.20 × 79,463.28
  4. Step 4: Simplify right side
    168,200.79x = 20,048,680,899.94
  5. Step 5: Solve for x
    x = 20,048,680,899.94/168,200.79
  6. Step 6: Final answer
    x = 119,194.93

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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.