Home / 256,820.95-385,302.30-107,131.60

Finding the Fourth Proportional to 256,820.95, 385,302.30 and 107,131.60

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Solution

The fourth proportional to 256,820.95, 385,302.30 and 107,131.60 is: 160,726.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,820.95 : 385,302.30 = 107,131.60 : x
  2. Step 2: Convert to fraction form
    256,820.95/385,302.30 = 107,131.60/x
  3. Step 3: Cross multiply
    256,820.95x = 385,302.30 × 107,131.60
  4. Step 4: Simplify right side
    256,820.95x = 41,278,051,882.68
  5. Step 5: Solve for x
    x = 41,278,051,882.68/256,820.95
  6. Step 6: Final answer
    x = 160,726.97

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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.