Home / 279,189.12-385,153.92-165,947.52

Finding the Fourth Proportional to 279,189.12, 385,153.92 and 165,947.52

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Solution

The fourth proportional to 279,189.12, 385,153.92 and 165,947.52 is: 228,932.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,189.12 : 385,153.92 = 165,947.52 : x
  2. Step 2: Convert to fraction form
    279,189.12/385,153.92 = 165,947.52/x
  3. Step 3: Cross multiply
    279,189.12x = 385,153.92 × 165,947.52
  4. Step 4: Simplify right side
    279,189.12x = 63,915,337,842.28
  5. Step 5: Solve for x
    x = 63,915,337,842.28/279,189.12
  6. Step 6: Final answer
    x = 228,932.05

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1.5x scale

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.