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Finding the Fourth Proportional to 275,508.72, 380,240.44 and 153,028.62

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Solution

The fourth proportional to 275,508.72, 380,240.44 and 153,028.62 is: 211,200.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,508.72 : 380,240.44 = 153,028.62 : x
  2. Step 2: Convert to fraction form
    275,508.72/380,240.44 = 153,028.62/x
  3. Step 3: Cross multiply
    275,508.72x = 380,240.44 × 153,028.62
  4. Step 4: Simplify right side
    275,508.72x = 58,187,669,801.39
  5. Step 5: Solve for x
    x = 58,187,669,801.39/275,508.72
  6. Step 6: Final answer
    x = 211,200.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.