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Finding the Fourth Proportional to 375.49, 518.16 and 296.65

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Solution

The fourth proportional to 375.49, 518.16 and 296.65 is: 409.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    375.49 : 518.16 = 296.65 : x
  2. Step 2: Convert to fraction form
    375.49/518.16 = 296.65/x
  3. Step 3: Cross multiply
    375.49x = 518.16 × 296.65
  4. Step 4: Simplify right side
    375.49x = 153,712.16
  5. Step 5: Solve for x
    x = 153,712.16/375.49
  6. Step 6: Final answer
    x = 409.36

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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.