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Finding the Fourth Proportional to 269,807, 404,710.20 and 80,266.60

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Solution

The fourth proportional to 269,807, 404,710.20 and 80,266.60 is: 120,399.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,807 : 404,710.20 = 80,266.60 : x
  2. Step 2: Convert to fraction form
    269,807/404,710.20 = 80,266.60/x
  3. Step 3: Cross multiply
    269,807x = 404,710.20 × 80,266.60
  4. Step 4: Simplify right side
    269,807x = 32,484,711,739.32
  5. Step 5: Solve for x
    x = 32,484,711,739.32/269,807
  6. Step 6: Final answer
    x = 120,399.81

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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.