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Finding the Fourth Proportional to 251,806.70, 377,600.70 and 83,261.90

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Solution

The fourth proportional to 251,806.70, 377,600.70 and 83,261.90 is: 124,856.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,806.70 : 377,600.70 = 83,261.90 : x
  2. Step 2: Convert to fraction form
    251,806.70/377,600.70 = 83,261.90/x
  3. Step 3: Cross multiply
    251,806.70x = 377,600.70 × 83,261.90
  4. Step 4: Simplify right side
    251,806.70x = 31,439,751,723.33
  5. Step 5: Solve for x
    x = 31,439,751,723.33/251,806.70
  6. Step 6: Final answer
    x = 124,856.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.