Home / 320,743.46-442,639.87-177,503.55

Finding the Fourth Proportional to 320,743.46, 442,639.87 and 177,503.55

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Solution

The fourth proportional to 320,743.46, 442,639.87 and 177,503.55 is: 244,962.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,743.46 : 442,639.87 = 177,503.55 : x
  2. Step 2: Convert to fraction form
    320,743.46/442,639.87 = 177,503.55/x
  3. Step 3: Cross multiply
    320,743.46x = 442,639.87 × 177,503.55
  4. Step 4: Simplify right side
    320,743.46x = 78,570,148,296.54
  5. Step 5: Solve for x
    x = 78,570,148,296.54/320,743.46
  6. Step 6: Final answer
    x = 244,962.59

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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.