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Finding the Fourth Proportional to 307,119.54, 423,806.31 and 169,292.43

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Solution

The fourth proportional to 307,119.54, 423,806.31 and 169,292.43 is: 233,613.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,119.54 : 423,806.31 = 169,292.43 : x
  2. Step 2: Convert to fraction form
    307,119.54/423,806.31 = 169,292.43/x
  3. Step 3: Cross multiply
    307,119.54x = 423,806.31 × 169,292.43
  4. Step 4: Simplify right side
    307,119.54x = 71,747,200,069.23
  5. Step 5: Solve for x
    x = 71,747,200,069.23/307,119.54
  6. Step 6: Final answer
    x = 233,613.27

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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.