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Finding the Fourth Proportional to 614.18, 847.74 and 365.54

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Solution

The fourth proportional to 614.18, 847.74 and 365.54 is: 504.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.18 : 847.74 = 365.54 : x
  2. Step 2: Convert to fraction form
    614.18/847.74 = 365.54/x
  3. Step 3: Cross multiply
    614.18x = 847.74 × 365.54
  4. Step 4: Simplify right side
    614.18x = 309,882.88
  5. Step 5: Solve for x
    x = 309,882.88/614.18
  6. Step 6: Final answer
    x = 504.55

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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.