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Finding the Fourth Proportional to 365.16, 545.01 and 330.60

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Solution

The fourth proportional to 365.16, 545.01 and 330.60 is: 493.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.16 : 545.01 = 330.60 : x
  2. Step 2: Convert to fraction form
    365.16/545.01 = 330.60/x
  3. Step 3: Cross multiply
    365.16x = 545.01 × 330.60
  4. Step 4: Simplify right side
    365.16x = 180,180.31
  5. Step 5: Solve for x
    x = 180,180.31/365.16
  6. Step 6: Final answer
    x = 493.43

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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.