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Finding the Fourth Proportional to 447,986.46, 671,760.72 and 195,480.30

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Solution

The fourth proportional to 447,986.46, 671,760.72 and 195,480.30 is: 293,124.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,986.46 : 671,760.72 = 195,480.30 : x
  2. Step 2: Convert to fraction form
    447,986.46/671,760.72 = 195,480.30/x
  3. Step 3: Cross multiply
    447,986.46x = 671,760.72 × 195,480.30
  4. Step 4: Simplify right side
    447,986.46x = 131,315,987,073.82
  5. Step 5: Solve for x
    x = 131,315,987,073.82/447,986.46
  6. Step 6: Final answer
    x = 293,124.90

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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.