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Finding the Fourth Proportional to 300,346.32, 450,452.92 and 89,956.56

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Solution

The fourth proportional to 300,346.32, 450,452.92 and 89,956.56 is: 134,914.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,346.32 : 450,452.92 = 89,956.56 : x
  2. Step 2: Convert to fraction form
    300,346.32/450,452.92 = 89,956.56/x
  3. Step 3: Cross multiply
    300,346.32x = 450,452.92 × 89,956.56
  4. Step 4: Simplify right side
    300,346.32x = 40,521,195,125.16
  5. Step 5: Solve for x
    x = 40,521,195,125.16/300,346.32
  6. Step 6: Final answer
    x = 134,914.90

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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.