Home / 240,213.32-331,527.30-138,236.68

Finding the Fourth Proportional to 240,213.32, 331,527.30 and 138,236.68

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Solution

The fourth proportional to 240,213.32, 331,527.30 and 138,236.68 is: 190,785.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,213.32 : 331,527.30 = 138,236.68 : x
  2. Step 2: Convert to fraction form
    240,213.32/331,527.30 = 138,236.68/x
  3. Step 3: Cross multiply
    240,213.32x = 331,527.30 × 138,236.68
  4. Step 4: Simplify right side
    240,213.32x = 45,829,233,281.36
  5. Step 5: Solve for x
    x = 45,829,233,281.36/240,213.32
  6. Step 6: Final answer
    x = 190,785.56

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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.