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Finding the Fourth Proportional to 291,469.70, 404,062.50 and 275,504.66

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Solution

The fourth proportional to 291,469.70, 404,062.50 and 275,504.66 is: 381,930.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,469.70 : 404,062.50 = 275,504.66 : x
  2. Step 2: Convert to fraction form
    291,469.70/404,062.50 = 275,504.66/x
  3. Step 3: Cross multiply
    291,469.70x = 404,062.50 × 275,504.66
  4. Step 4: Simplify right side
    291,469.70x = 111,321,101,681.25
  5. Step 5: Solve for x
    x = 111,321,101,681.25/291,469.70
  6. Step 6: Final answer
    x = 381,930.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.