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Finding the Fourth Proportional to 250,635.88, 345,882.90 and 137,458.36

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Solution

The fourth proportional to 250,635.88, 345,882.90 and 137,458.36 is: 189,695.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,635.88 : 345,882.90 = 137,458.36 : x
  2. Step 2: Convert to fraction form
    250,635.88/345,882.90 = 137,458.36/x
  3. Step 3: Cross multiply
    250,635.88x = 345,882.90 × 137,458.36
  4. Step 4: Simplify right side
    250,635.88x = 47,544,496,186.04
  5. Step 5: Solve for x
    x = 47,544,496,186.04/250,635.88
  6. Step 6: Final answer
    x = 189,695.49

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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.