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Finding the Fourth Proportional to 309.72, 463.88 and 244.26

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Solution

The fourth proportional to 309.72, 463.88 and 244.26 is: 365.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    309.72 : 463.88 = 244.26 : x
  2. Step 2: Convert to fraction form
    309.72/463.88 = 244.26/x
  3. Step 3: Cross multiply
    309.72x = 463.88 × 244.26
  4. Step 4: Simplify right side
    309.72x = 113,307.33
  5. Step 5: Solve for x
    x = 113,307.33/309.72
  6. Step 6: Final answer
    x = 365.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.