Home / 279,486.30-385,690.57-152,161.59

Finding the Fourth Proportional to 279,486.30, 385,690.57 and 152,161.59

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Solution

The fourth proportional to 279,486.30, 385,690.57 and 152,161.59 is: 209,982.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,486.30 : 385,690.57 = 152,161.59 : x
  2. Step 2: Convert to fraction form
    279,486.30/385,690.57 = 152,161.59/x
  3. Step 3: Cross multiply
    279,486.30x = 385,690.57 × 152,161.59
  4. Step 4: Simplify right side
    279,486.30x = 58,687,289,618.40
  5. Step 5: Solve for x
    x = 58,687,289,618.40/279,486.30
  6. Step 6: Final answer
    x = 209,982.71

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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.