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Finding the Fourth Proportional to 168,287.55, 252,237.52 and 68,338

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Solution

The fourth proportional to 168,287.55, 252,237.52 and 68,338 is: 102,428.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,287.55 : 252,237.52 = 68,338 : x
  2. Step 2: Convert to fraction form
    168,287.55/252,237.52 = 68,338/x
  3. Step 3: Cross multiply
    168,287.55x = 252,237.52 × 68,338
  4. Step 4: Simplify right side
    168,287.55x = 17,237,407,641.76
  5. Step 5: Solve for x
    x = 17,237,407,641.76/168,287.55
  6. Step 6: Final answer
    x = 102,428.30

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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.