Home / 320,396.20-442,138.92-177,152.56

Finding the Fourth Proportional to 320,396.20, 442,138.92 and 177,152.56

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Solution

The fourth proportional to 320,396.20, 442,138.92 and 177,152.56 is: 244,466.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,396.20 : 442,138.92 = 177,152.56 : x
  2. Step 2: Convert to fraction form
    320,396.20/442,138.92 = 177,152.56/x
  3. Step 3: Cross multiply
    320,396.20x = 442,138.92 × 177,152.56
  4. Step 4: Simplify right side
    320,396.20x = 78,326,041,553.64
  5. Step 5: Solve for x
    x = 78,326,041,553.64/320,396.20
  6. Step 6: Final answer
    x = 244,466.20

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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.