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Finding the Fourth Proportional to 250,668.40, 345,920.96 and 135,945.89

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Solution

The fourth proportional to 250,668.40, 345,920.96 and 135,945.89 is: 187,604.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,668.40 : 345,920.96 = 135,945.89 : x
  2. Step 2: Convert to fraction form
    250,668.40/345,920.96 = 135,945.89/x
  3. Step 3: Cross multiply
    250,668.40x = 345,920.96 × 135,945.89
  4. Step 4: Simplify right side
    250,668.40x = 47,026,532,097.13
  5. Step 5: Solve for x
    x = 47,026,532,097.13/250,668.40
  6. Step 6: Final answer
    x = 187,604.55

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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.