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Finding the Fourth Proportional to 250,614, 345,847.32 and 137,436.75

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Solution

The fourth proportional to 250,614, 345,847.32 and 137,436.75 is: 189,662.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,614 : 345,847.32 = 137,436.75 : x
  2. Step 2: Convert to fraction form
    250,614/345,847.32 = 137,436.75/x
  3. Step 3: Cross multiply
    250,614x = 345,847.32 × 137,436.75
  4. Step 4: Simplify right side
    250,614x = 47,532,131,657.01
  5. Step 5: Solve for x
    x = 47,532,131,657.01/250,614
  6. Step 6: Final answer
    x = 189,662.72

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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.