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Finding the Fourth Proportional to 250,625.78, 345,864.04 and 137,449.34

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Solution

The fourth proportional to 250,625.78, 345,864.04 and 137,449.34 is: 189,680.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,625.78 : 345,864.04 = 137,449.34 : x
  2. Step 2: Convert to fraction form
    250,625.78/345,864.04 = 137,449.34/x
  3. Step 3: Cross multiply
    250,625.78x = 345,864.04 × 137,449.34
  4. Step 4: Simplify right side
    250,625.78x = 47,538,784,027.73
  5. Step 5: Solve for x
    x = 47,538,784,027.73/250,625.78
  6. Step 6: Final answer
    x = 189,680.34

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1.5x scale

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.