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Finding the Fourth Proportional to 269,228.80, 403,810.80 and 111,440.80

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Solution

The fourth proportional to 269,228.80, 403,810.80 and 111,440.80 is: 167,147.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,228.80 : 403,810.80 = 111,440.80 : x
  2. Step 2: Convert to fraction form
    269,228.80/403,810.80 = 111,440.80/x
  3. Step 3: Cross multiply
    269,228.80x = 403,810.80 × 111,440.80
  4. Step 4: Simplify right side
    269,228.80x = 45,000,998,600.64
  5. Step 5: Solve for x
    x = 45,000,998,600.64/269,228.80
  6. Step 6: Final answer
    x = 167,147.79

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1.5x scale

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.