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Finding the Fourth Proportional to 250,602.72, 345,847.50 and 137,425.50

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Solution

The fourth proportional to 250,602.72, 345,847.50 and 137,425.50 is: 189,655.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,602.72 : 345,847.50 = 137,425.50 : x
  2. Step 2: Convert to fraction form
    250,602.72/345,847.50 = 137,425.50/x
  3. Step 3: Cross multiply
    250,602.72x = 345,847.50 × 137,425.50
  4. Step 4: Simplify right side
    250,602.72x = 47,528,265,611.25
  5. Step 5: Solve for x
    x = 47,528,265,611.25/250,602.72
  6. Step 6: Final answer
    x = 189,655.83

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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.