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Finding the Fourth Proportional to 550.88, 826.32 and 290.24

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Solution

The fourth proportional to 550.88, 826.32 and 290.24 is: 435.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.88 : 826.32 = 290.24 : x
  2. Step 2: Convert to fraction form
    550.88/826.32 = 290.24/x
  3. Step 3: Cross multiply
    550.88x = 826.32 × 290.24
  4. Step 4: Simplify right side
    550.88x = 239,831.12
  5. Step 5: Solve for x
    x = 239,831.12/550.88
  6. Step 6: Final answer
    x = 435.36

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Double scale
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Similar ratio
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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.