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Finding the Fourth Proportional to 298,344.35, 447,517.76 and 120,854.72

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Solution

The fourth proportional to 298,344.35, 447,517.76 and 120,854.72 is: 181,282.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,344.35 : 447,517.76 = 120,854.72 : x
  2. Step 2: Convert to fraction form
    298,344.35/447,517.76 = 120,854.72/x
  3. Step 3: Cross multiply
    298,344.35x = 447,517.76 × 120,854.72
  4. Step 4: Simplify right side
    298,344.35x = 54,084,634,094.35
  5. Step 5: Solve for x
    x = 54,084,634,094.35/298,344.35
  6. Step 6: Final answer
    x = 181,282.58

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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.