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Finding the Fourth Proportional to 250,124.80, 345,172.20 and 136,947.52

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Solution

The fourth proportional to 250,124.80, 345,172.20 and 136,947.52 is: 188,987.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,124.80 : 345,172.20 = 136,947.52 : x
  2. Step 2: Convert to fraction form
    250,124.80/345,172.20 = 136,947.52/x
  3. Step 3: Cross multiply
    250,124.80x = 345,172.20 × 136,947.52
  4. Step 4: Simplify right side
    250,124.80x = 47,270,476,762.94
  5. Step 5: Solve for x
    x = 47,270,476,762.94/250,124.80
  6. Step 6: Final answer
    x = 188,987.56

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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.