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Finding the Fourth Proportional to 550.06, 758.77 and 384.42

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Solution

The fourth proportional to 550.06, 758.77 and 384.42 is: 530.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.06 : 758.77 = 384.42 : x
  2. Step 2: Convert to fraction form
    550.06/758.77 = 384.42/x
  3. Step 3: Cross multiply
    550.06x = 758.77 × 384.42
  4. Step 4: Simplify right side
    550.06x = 291,686.36
  5. Step 5: Solve for x
    x = 291,686.36/550.06
  6. Step 6: Final answer
    x = 530.28

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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.