Home / 320,376.96-442,081.55-177,117.53

Finding the Fourth Proportional to 320,376.96, 442,081.55 and 177,117.53

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Solution

The fourth proportional to 320,376.96, 442,081.55 and 177,117.53 is: 244,400.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,376.96 : 442,081.55 = 177,117.53 : x
  2. Step 2: Convert to fraction form
    320,376.96/442,081.55 = 177,117.53/x
  3. Step 3: Cross multiply
    320,376.96x = 442,081.55 × 177,117.53
  4. Step 4: Simplify right side
    320,376.96x = 78,300,389,098.58
  5. Step 5: Solve for x
    x = 78,300,389,098.58/320,376.96
  6. Step 6: Final answer
    x = 244,400.81

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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.