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Finding the Fourth Proportional to 279,319.69, 418,649.89 and 119,348.84

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Solution

The fourth proportional to 279,319.69, 418,649.89 and 119,348.84 is: 178,882.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,319.69 : 418,649.89 = 119,348.84 : x
  2. Step 2: Convert to fraction form
    279,319.69/418,649.89 = 119,348.84/x
  3. Step 3: Cross multiply
    279,319.69x = 418,649.89 × 119,348.84
  4. Step 4: Simplify right side
    279,319.69x = 49,965,380,045.33
  5. Step 5: Solve for x
    x = 49,965,380,045.33/279,319.69
  6. Step 6: Final answer
    x = 178,882.41

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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.