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Finding the Fourth Proportional to 736.32, 1,104.68 and 346.31

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Solution

The fourth proportional to 736.32, 1,104.68 and 346.31 is: 519.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    736.32 : 1,104.68 = 346.31 : x
  2. Step 2: Convert to fraction form
    736.32/1,104.68 = 346.31/x
  3. Step 3: Cross multiply
    736.32x = 1,104.68 × 346.31
  4. Step 4: Simplify right side
    736.32x = 382,561.73
  5. Step 5: Solve for x
    x = 382,561.73/736.32
  6. Step 6: Final answer
    x = 519.56

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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.