Home / 251,949.55-347,690.36-138,772.30

Finding the Fourth Proportional to 251,949.55, 347,690.36 and 138,772.30

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Solution

The fourth proportional to 251,949.55, 347,690.36 and 138,772.30 is: 191,505.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,949.55 : 347,690.36 = 138,772.30 : x
  2. Step 2: Convert to fraction form
    251,949.55/347,690.36 = 138,772.30/x
  3. Step 3: Cross multiply
    251,949.55x = 347,690.36 × 138,772.30
  4. Step 4: Simplify right side
    251,949.55x = 48,249,790,422.73
  5. Step 5: Solve for x
    x = 48,249,790,422.73/251,949.55
  6. Step 6: Final answer
    x = 191,505.76

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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.