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Finding the Fourth Proportional to 269,475.90, 404,359.65 and 111,720.30

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Solution

The fourth proportional to 269,475.90, 404,359.65 and 111,720.30 is: 167,640.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,475.90 : 404,359.65 = 111,720.30 : x
  2. Step 2: Convert to fraction form
    269,475.90/404,359.65 = 111,720.30/x
  3. Step 3: Cross multiply
    269,475.90x = 404,359.65 × 111,720.30
  4. Step 4: Simplify right side
    269,475.90x = 45,175,181,405.90
  5. Step 5: Solve for x
    x = 45,175,181,405.90/269,475.90
  6. Step 6: Final answer
    x = 167,640.90

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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.