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Finding the Fourth Proportional to 250,170.88, 345,235.84 and 137,000.64

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Solution

The fourth proportional to 250,170.88, 345,235.84 and 137,000.64 is: 189,060.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,170.88 : 345,235.84 = 137,000.64 : x
  2. Step 2: Convert to fraction form
    250,170.88/345,235.84 = 137,000.64/x
  3. Step 3: Cross multiply
    250,170.88x = 345,235.84 × 137,000.64
  4. Step 4: Simplify right side
    250,170.88x = 47,297,531,030.94
  5. Step 5: Solve for x
    x = 47,297,531,030.94/250,170.88
  6. Step 6: Final answer
    x = 189,060.90

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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.