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Finding the Fourth Proportional to 307,269.96, 424,057.80 and 169,475.88

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Solution

The fourth proportional to 307,269.96, 424,057.80 and 169,475.88 is: 233,890.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,269.96 : 424,057.80 = 169,475.88 : x
  2. Step 2: Convert to fraction form
    307,269.96/424,057.80 = 169,475.88/x
  3. Step 3: Cross multiply
    307,269.96x = 424,057.80 × 169,475.88
  4. Step 4: Simplify right side
    307,269.96x = 71,867,568,825.86
  5. Step 5: Solve for x
    x = 71,867,568,825.86/307,269.96
  6. Step 6: Final answer
    x = 233,890.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.