Home / 251,943.80-347,682.42-138,766.55

Finding the Fourth Proportional to 251,943.80, 347,682.42 and 138,766.55

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Solution

The fourth proportional to 251,943.80, 347,682.42 and 138,766.55 is: 191,497.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,943.80 : 347,682.42 = 138,766.55 : x
  2. Step 2: Convert to fraction form
    251,943.80/347,682.42 = 138,766.55/x
  3. Step 3: Cross multiply
    251,943.80x = 347,682.42 × 138,766.55
  4. Step 4: Simplify right side
    251,943.80x = 48,246,689,919.05
  5. Step 5: Solve for x
    x = 48,246,689,919.05/251,943.80
  6. Step 6: Final answer
    x = 191,497.83

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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.