Home / 279,524.28-385,983.30-270,486.12

Finding the Fourth Proportional to 279,524.28, 385,983.30 and 270,486.12

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Solution

The fourth proportional to 279,524.28, 385,983.30 and 270,486.12 is: 373,502.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,524.28 : 385,983.30 = 270,486.12 : x
  2. Step 2: Convert to fraction form
    279,524.28/385,983.30 = 270,486.12/x
  3. Step 3: Cross multiply
    279,524.28x = 385,983.30 × 270,486.12
  4. Step 4: Simplify right side
    279,524.28x = 104,403,125,201.80
  5. Step 5: Solve for x
    x = 104,403,125,201.80/279,524.28
  6. Step 6: Final answer
    x = 373,502.89

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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.