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Finding the Fourth Proportional to 298,520.88, 447,936.84 and 132,270

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Solution

The fourth proportional to 298,520.88, 447,936.84 and 132,270 is: 198,473.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,520.88 : 447,936.84 = 132,270 : x
  2. Step 2: Convert to fraction form
    298,520.88/447,936.84 = 132,270/x
  3. Step 3: Cross multiply
    298,520.88x = 447,936.84 × 132,270
  4. Step 4: Simplify right side
    298,520.88x = 59,248,605,826.80
  5. Step 5: Solve for x
    x = 59,248,605,826.80/298,520.88
  6. Step 6: Final answer
    x = 198,473.91

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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.