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Finding the Fourth Proportional to 614.50, 847.72 and 365.74

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Solution

The fourth proportional to 614.50, 847.72 and 365.74 is: 504.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.50 : 847.72 = 365.74 : x
  2. Step 2: Convert to fraction form
    614.50/847.72 = 365.74/x
  3. Step 3: Cross multiply
    614.50x = 847.72 × 365.74
  4. Step 4: Simplify right side
    614.50x = 310,045.11
  5. Step 5: Solve for x
    x = 310,045.11/614.50
  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.