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Finding the Fourth Proportional to 298,293.91, 447,440.87 and 85,066.27

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Solution

The fourth proportional to 298,293.91, 447,440.87 and 85,066.27 is: 127,599.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,293.91 : 447,440.87 = 85,066.27 : x
  2. Step 2: Convert to fraction form
    298,293.91/447,440.87 = 85,066.27/x
  3. Step 3: Cross multiply
    298,293.91x = 447,440.87 × 85,066.27
  4. Step 4: Simplify right side
    298,293.91x = 38,062,125,856.45
  5. Step 5: Solve for x
    x = 38,062,125,856.45/298,293.91
  6. Step 6: Final answer
    x = 127,599.41

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Similar ratio
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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.