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Finding the Fourth Proportional to 300,662.76, 451,082.70 and 90,332.76

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Solution

The fourth proportional to 300,662.76, 451,082.70 and 90,332.76 is: 135,525.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,662.76 : 451,082.70 = 90,332.76 : x
  2. Step 2: Convert to fraction form
    300,662.76/451,082.70 = 90,332.76/x
  3. Step 3: Cross multiply
    300,662.76x = 451,082.70 × 90,332.76
  4. Step 4: Simplify right side
    300,662.76x = 40,747,545,279.25
  5. Step 5: Solve for x
    x = 40,747,545,279.25/300,662.76
  6. Step 6: Final answer
    x = 135,525.75

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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.