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Finding the Fourth Proportional to 368.75, 550.57 and 365.05

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Solution

The fourth proportional to 368.75, 550.57 and 365.05 is: 545.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    368.75 : 550.57 = 365.05 : x
  2. Step 2: Convert to fraction form
    368.75/550.57 = 365.05/x
  3. Step 3: Cross multiply
    368.75x = 550.57 × 365.05
  4. Step 4: Simplify right side
    368.75x = 200,983.06
  5. Step 5: Solve for x
    x = 200,983.06/368.75
  6. Step 6: Final answer
    x = 545.04

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.