Home / 240,342.10-331,571.91-138,343.15

Finding the Fourth Proportional to 240,342.10, 331,571.91 and 138,343.15

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Solution

The fourth proportional to 240,342.10, 331,571.91 and 138,343.15 is: 190,855.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,342.10 : 331,571.91 = 138,343.15 : x
  2. Step 2: Convert to fraction form
    240,342.10/331,571.91 = 138,343.15/x
  3. Step 3: Cross multiply
    240,342.10x = 331,571.91 × 138,343.15
  4. Step 4: Simplify right side
    240,342.10x = 45,870,703,414.17
  5. Step 5: Solve for x
    x = 45,870,703,414.17/240,342.10
  6. Step 6: Final answer
    x = 190,855.88

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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.