Home / 320,390.96-442,132.68-177,157.04

Finding the Fourth Proportional to 320,390.96, 442,132.68 and 177,157.04

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Solution

The fourth proportional to 320,390.96, 442,132.68 and 177,157.04 is: 244,472.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,390.96 : 442,132.68 = 177,157.04 : x
  2. Step 2: Convert to fraction form
    320,390.96/442,132.68 = 177,157.04/x
  3. Step 3: Cross multiply
    320,390.96x = 442,132.68 × 177,157.04
  4. Step 4: Simplify right side
    320,390.96x = 78,326,916,876.07
  5. Step 5: Solve for x
    x = 78,326,916,876.07/320,390.96
  6. Step 6: Final answer
    x = 244,472.93

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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.