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Finding the Fourth Proportional to 169,300.40, 253,691.40 and 159,969.20

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Solution

The fourth proportional to 169,300.40, 253,691.40 and 159,969.20 is: 239,708.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,300.40 : 253,691.40 = 159,969.20 : x
  2. Step 2: Convert to fraction form
    169,300.40/253,691.40 = 159,969.20/x
  3. Step 3: Cross multiply
    169,300.40x = 253,691.40 × 159,969.20
  4. Step 4: Simplify right side
    169,300.40x = 40,582,810,304.88
  5. Step 5: Solve for x
    x = 40,582,810,304.88/169,300.40
  6. Step 6: Final answer
    x = 239,708.89

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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.