Home / 240,207.31-331,519.02-138,230.68

Finding the Fourth Proportional to 240,207.31, 331,519.02 and 138,230.68

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Solution

The fourth proportional to 240,207.31, 331,519.02 and 138,230.68 is: 190,777.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,207.31 : 331,519.02 = 138,230.68 : x
  2. Step 2: Convert to fraction form
    240,207.31/331,519.02 = 138,230.68/x
  3. Step 3: Cross multiply
    240,207.31x = 331,519.02 × 138,230.68
  4. Step 4: Simplify right side
    240,207.31x = 45,826,099,567.53
  5. Step 5: Solve for x
    x = 45,826,099,567.53/240,207.31
  6. Step 6: Final answer
    x = 190,777.29

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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.