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Finding the Fourth Proportional to 371.04, 511.29 and 326.49

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Solution

The fourth proportional to 371.04, 511.29 and 326.49 is: 449.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    371.04 : 511.29 = 326.49 : x
  2. Step 2: Convert to fraction form
    371.04/511.29 = 326.49/x
  3. Step 3: Cross multiply
    371.04x = 511.29 × 326.49
  4. Step 4: Simplify right side
    371.04x = 166,931.07
  5. Step 5: Solve for x
    x = 166,931.07/371.04
  6. Step 6: Final answer
    x = 449.90

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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.