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Finding the Fourth Proportional to 250,326, 345,449.88 and 137,151.36

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Solution

The fourth proportional to 250,326, 345,449.88 and 137,151.36 is: 189,268.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,326 : 345,449.88 = 137,151.36 : x
  2. Step 2: Convert to fraction form
    250,326/345,449.88 = 137,151.36/x
  3. Step 3: Cross multiply
    250,326x = 345,449.88 × 137,151.36
  4. Step 4: Simplify right side
    250,326x = 47,378,920,853.84
  5. Step 5: Solve for x
    x = 47,378,920,853.84/250,326
  6. Step 6: Final answer
    x = 189,268.88

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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.