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Finding the Fourth Proportional to 250,376.88, 345,520.23 and 137,199.63

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Solution

The fourth proportional to 250,376.88, 345,520.23 and 137,199.63 is: 189,335.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,376.88 : 345,520.23 = 137,199.63 : x
  2. Step 2: Convert to fraction form
    250,376.88/345,520.23 = 137,199.63/x
  3. Step 3: Cross multiply
    250,376.88x = 345,520.23 × 137,199.63
  4. Step 4: Simplify right side
    250,376.88x = 47,405,247,713.51
  5. Step 5: Solve for x
    x = 47,405,247,713.51/250,376.88
  6. Step 6: Final answer
    x = 189,335.56

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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.