Home / 279,826.23-386,148.87-152,499.09

Finding the Fourth Proportional to 279,826.23, 386,148.87 and 152,499.09

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Solution

The fourth proportional to 279,826.23, 386,148.87 and 152,499.09 is: 210,442.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,826.23 : 386,148.87 = 152,499.09 : x
  2. Step 2: Convert to fraction form
    279,826.23/386,148.87 = 152,499.09/x
  3. Step 3: Cross multiply
    279,826.23x = 386,148.87 × 152,499.09
  4. Step 4: Simplify right side
    279,826.23x = 58,887,351,279.53
  5. Step 5: Solve for x
    x = 58,887,351,279.53/279,826.23
  6. Step 6: Final answer
    x = 210,442.57

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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.