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Finding the Fourth Proportional to 269,835.80, 404,683.13 and 80,245.08

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Solution

The fourth proportional to 269,835.80, 404,683.13 and 80,245.08 is: 120,346.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,835.80 : 404,683.13 = 80,245.08 : x
  2. Step 2: Convert to fraction form
    269,835.80/404,683.13 = 80,245.08/x
  3. Step 3: Cross multiply
    269,835.80x = 404,683.13 × 80,245.08
  4. Step 4: Simplify right side
    269,835.80x = 32,473,830,342.11
  5. Step 5: Solve for x
    x = 32,473,830,342.11/269,835.80
  6. Step 6: Final answer
    x = 120,346.63

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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.