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Finding the Fourth Proportional to 550.16, 758.88 and 353.32

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Solution

The fourth proportional to 550.16, 758.88 and 353.32 is: 487.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.16 : 758.88 = 353.32 : x
  2. Step 2: Convert to fraction form
    550.16/758.88 = 353.32/x
  3. Step 3: Cross multiply
    550.16x = 758.88 × 353.32
  4. Step 4: Simplify right side
    550.16x = 268,127.48
  5. Step 5: Solve for x
    x = 268,127.48/550.16
  6. Step 6: Final answer
    x = 487.36

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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.