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Finding the Fourth Proportional to 366.67, 545.29 and 355.14

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Solution

The fourth proportional to 366.67, 545.29 and 355.14 is: 528.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.67 : 545.29 = 355.14 : x
  2. Step 2: Convert to fraction form
    366.67/545.29 = 355.14/x
  3. Step 3: Cross multiply
    366.67x = 545.29 × 355.14
  4. Step 4: Simplify right side
    366.67x = 193,654.29
  5. Step 5: Solve for x
    x = 193,654.29/366.67
  6. Step 6: Final answer
    x = 528.14

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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.