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Finding the Fourth Proportional to 300,082.08, 449,991.84 and 142,355.52

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Solution

The fourth proportional to 300,082.08, 449,991.84 and 142,355.52 is: 213,471.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,082.08 : 449,991.84 = 142,355.52 : x
  2. Step 2: Convert to fraction form
    300,082.08/449,991.84 = 142,355.52/x
  3. Step 3: Cross multiply
    300,082.08x = 449,991.84 × 142,355.52
  4. Step 4: Simplify right side
    300,082.08x = 64,058,822,378.96
  5. Step 5: Solve for x
    x = 64,058,822,378.96/300,082.08
  6. Step 6: Final answer
    x = 213,471.00

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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.