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Finding the Fourth Proportional to 298,003.28, 447,004.92 and 87,641.22

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Solution

The fourth proportional to 298,003.28, 447,004.92 and 87,641.22 is: 131,461.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,003.28 : 447,004.92 = 87,641.22 : x
  2. Step 2: Convert to fraction form
    298,003.28/447,004.92 = 87,641.22/x
  3. Step 3: Cross multiply
    298,003.28x = 447,004.92 × 87,641.22
  4. Step 4: Simplify right side
    298,003.28x = 39,176,056,534.80
  5. Step 5: Solve for x
    x = 39,176,056,534.80/298,003.28
  6. Step 6: Final answer
    x = 131,461.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.