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Finding the Fourth Proportional to 451,387.18, 677,374.38 and 195,469.72

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Solution

The fourth proportional to 451,387.18, 677,374.38 and 195,469.72 is: 293,331.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,387.18 : 677,374.38 = 195,469.72 : x
  2. Step 2: Convert to fraction form
    451,387.18/677,374.38 = 195,469.72/x
  3. Step 3: Cross multiply
    451,387.18x = 677,374.38 × 195,469.72
  4. Step 4: Simplify right side
    451,387.18x = 132,406,180,393.77
  5. Step 5: Solve for x
    x = 132,406,180,393.77/451,387.18
  6. Step 6: Final answer
    x = 293,331.73

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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.