Home / 320,539.36-442,330.80-177,290.24

Finding the Fourth Proportional to 320,539.36, 442,330.80 and 177,290.24

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Solution

The fourth proportional to 320,539.36, 442,330.80 and 177,290.24 is: 244,653.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,539.36 : 442,330.80 = 177,290.24 : x
  2. Step 2: Convert to fraction form
    320,539.36/442,330.80 = 177,290.24/x
  3. Step 3: Cross multiply
    320,539.36x = 442,330.80 × 177,290.24
  4. Step 4: Simplify right side
    320,539.36x = 78,420,933,691.39
  5. Step 5: Solve for x
    x = 78,420,933,691.39/320,539.36
  6. Step 6: Final answer
    x = 244,653.06

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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.