Home / 240,032.30-331,254.63-138,057.78

Finding the Fourth Proportional to 240,032.30, 331,254.63 and 138,057.78

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Solution

The fourth proportional to 240,032.30, 331,254.63 and 138,057.78 is: 190,525.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,032.30 : 331,254.63 = 138,057.78 : x
  2. Step 2: Convert to fraction form
    240,032.30/331,254.63 = 138,057.78/x
  3. Step 3: Cross multiply
    240,032.30x = 331,254.63 × 138,057.78
  4. Step 4: Simplify right side
    240,032.30x = 45,732,278,832.52
  5. Step 5: Solve for x
    x = 45,732,278,832.52/240,032.30
  6. Step 6: Final answer
    x = 190,525.52

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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.