Home / 320,354.06-442,049-177,116.90

Finding the Fourth Proportional to 320,354.06, 442,049 and 177,116.90

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Solution

The fourth proportional to 320,354.06, 442,049 and 177,116.90 is: 244,399.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,354.06 : 442,049 = 177,116.90 : x
  2. Step 2: Convert to fraction form
    320,354.06/442,049 = 177,116.90/x
  3. Step 3: Cross multiply
    320,354.06x = 442,049 × 177,116.90
  4. Step 4: Simplify right side
    320,354.06x = 78,294,348,528.10
  5. Step 5: Solve for x
    x = 78,294,348,528.10/320,354.06
  6. Step 6: Final answer
    x = 244,399.43

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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.