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Finding the Fourth Proportional to 437.49, 603.74 and 238.32

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Solution

The fourth proportional to 437.49, 603.74 and 238.32 is: 328.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    437.49 : 603.74 = 238.32 : x
  2. Step 2: Convert to fraction form
    437.49/603.74 = 238.32/x
  3. Step 3: Cross multiply
    437.49x = 603.74 × 238.32
  4. Step 4: Simplify right side
    437.49x = 143,882.13
  5. Step 5: Solve for x
    x = 143,882.13/437.49
  6. Step 6: Final answer
    x = 328.88

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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.