Home / 256,780.38-384,961.89-107,132.17

Finding the Fourth Proportional to 256,780.38, 384,961.89 and 107,132.17

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Solution

The fourth proportional to 256,780.38, 384,961.89 and 107,132.17 is: 160,611.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,780.38 : 384,961.89 = 107,132.17 : x
  2. Step 2: Convert to fraction form
    256,780.38/384,961.89 = 107,132.17/x
  3. Step 3: Cross multiply
    256,780.38x = 384,961.89 × 107,132.17
  4. Step 4: Simplify right side
    256,780.38x = 41,241,802,502.84
  5. Step 5: Solve for x
    x = 41,241,802,502.84/256,780.38
  6. Step 6: Final answer
    x = 160,611.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.