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Finding the Fourth Proportional to 307,041.90, 423,700.92 and 169,193.68

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Solution

The fourth proportional to 307,041.90, 423,700.92 and 169,193.68 is: 233,477.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,041.90 : 423,700.92 = 169,193.68 : x
  2. Step 2: Convert to fraction form
    307,041.90/423,700.92 = 169,193.68/x
  3. Step 3: Cross multiply
    307,041.90x = 423,700.92 × 169,193.68
  4. Step 4: Simplify right side
    307,041.90x = 71,687,517,874.19
  5. Step 5: Solve for x
    x = 71,687,517,874.19/307,041.90
  6. Step 6: Final answer
    x = 233,477.96

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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.