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Finding the Fourth Proportional to 298,757.28, 447,980.40 and 88,366.80

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Solution

The fourth proportional to 298,757.28, 447,980.40 and 88,366.80 is: 132,504.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,757.28 : 447,980.40 = 88,366.80 : x
  2. Step 2: Convert to fraction form
    298,757.28/447,980.40 = 88,366.80/x
  3. Step 3: Cross multiply
    298,757.28x = 447,980.40 × 88,366.80
  4. Step 4: Simplify right side
    298,757.28x = 39,586,594,410.72
  5. Step 5: Solve for x
    x = 39,586,594,410.72/298,757.28
  6. Step 6: Final answer
    x = 132,504.20

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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.