Home / 279,618.12-385,876.26-152,294.76

Finding the Fourth Proportional to 279,618.12, 385,876.26 and 152,294.76

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Solution

The fourth proportional to 279,618.12, 385,876.26 and 152,294.76 is: 210,168.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,618.12 : 385,876.26 = 152,294.76 : x
  2. Step 2: Convert to fraction form
    279,618.12/385,876.26 = 152,294.76/x
  3. Step 3: Cross multiply
    279,618.12x = 385,876.26 × 152,294.76
  4. Step 4: Simplify right side
    279,618.12x = 58,766,932,406.40
  5. Step 5: Solve for x
    x = 58,766,932,406.40/279,618.12
  6. Step 6: Final answer
    x = 210,168.54

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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.