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Finding the Fourth Proportional to 160,536.38, 240,744.42 and 128,868.62

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Solution

The fourth proportional to 160,536.38, 240,744.42 and 128,868.62 is: 193,254.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,536.38 : 240,744.42 = 128,868.62 : x
  2. Step 2: Convert to fraction form
    160,536.38/240,744.42 = 128,868.62/x
  3. Step 3: Cross multiply
    160,536.38x = 240,744.42 × 128,868.62
  4. Step 4: Simplify right side
    160,536.38x = 31,024,399,974.38
  5. Step 5: Solve for x
    x = 31,024,399,974.38/160,536.38
  6. Step 6: Final answer
    x = 193,254.64

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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.