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Finding the Fourth Proportional to 250,204.80, 345,307.27 and 142,791

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Solution

The fourth proportional to 250,204.80, 345,307.27 and 142,791 is: 197,065.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,204.80 : 345,307.27 = 142,791 : x
  2. Step 2: Convert to fraction form
    250,204.80/345,307.27 = 142,791/x
  3. Step 3: Cross multiply
    250,204.80x = 345,307.27 × 142,791
  4. Step 4: Simplify right side
    250,204.80x = 49,306,770,390.57
  5. Step 5: Solve for x
    x = 49,306,770,390.57/250,204.80
  6. Step 6: Final answer
    x = 197,065.65

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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.