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Finding the Fourth Proportional to 240,625.41, 332,070.87 and 138,642.76

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Solution

The fourth proportional to 240,625.41, 332,070.87 and 138,642.76 is: 191,331.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,625.41 : 332,070.87 = 138,642.76 : x
  2. Step 2: Convert to fraction form
    240,625.41/332,070.87 = 138,642.76/x
  3. Step 3: Cross multiply
    240,625.41x = 332,070.87 × 138,642.76
  4. Step 4: Simplify right side
    240,625.41x = 46,039,221,932.40
  5. Step 5: Solve for x
    x = 46,039,221,932.40/240,625.41
  6. Step 6: Final answer
    x = 191,331.51

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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.