Home / 251,949.56-347,690.36-138,772.31

Finding the Fourth Proportional to 251,949.56, 347,690.36 and 138,772.31

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Solution

The fourth proportional to 251,949.56, 347,690.36 and 138,772.31 is: 191,505.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,949.56 : 347,690.36 = 138,772.31 : x
  2. Step 2: Convert to fraction form
    251,949.56/347,690.36 = 138,772.31/x
  3. Step 3: Cross multiply
    251,949.56x = 347,690.36 × 138,772.31
  4. Step 4: Simplify right side
    251,949.56x = 48,249,791,989.62
  5. Step 5: Solve for x
    x = 48,249,791,989.62/251,949.56
  6. Step 6: Final answer
    x = 191,505.76

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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.