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Finding the Fourth Proportional to 300,405.13, 450,763.02 and 132,043.66

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Solution

The fourth proportional to 300,405.13, 450,763.02 and 132,043.66 is: 198,133.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,405.13 : 450,763.02 = 132,043.66 : x
  2. Step 2: Convert to fraction form
    300,405.13/450,763.02 = 132,043.66/x
  3. Step 3: Cross multiply
    300,405.13x = 450,763.02 × 132,043.66
  4. Step 4: Simplify right side
    300,405.13x = 59,520,398,953.45
  5. Step 5: Solve for x
    x = 59,520,398,953.45/300,405.13
  6. Step 6: Final answer
    x = 198,133.76

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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.