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Finding the Fourth Proportional to 614.55, 847.69 and 365.70

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Solution

The fourth proportional to 614.55, 847.69 and 365.70 is: 504.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.55 : 847.69 = 365.70 : x
  2. Step 2: Convert to fraction form
    614.55/847.69 = 365.70/x
  3. Step 3: Cross multiply
    614.55x = 847.69 × 365.70
  4. Step 4: Simplify right side
    614.55x = 310,000.23
  5. Step 5: Solve for x
    x = 310,000.23/614.55
  6. Step 6: Final answer
    x = 504.43

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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.