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Finding the Fourth Proportional to 371.04, 553.35 and 316.53

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Solution

The fourth proportional to 371.04, 553.35 and 316.53 is: 472.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    371.04 : 553.35 = 316.53 : x
  2. Step 2: Convert to fraction form
    371.04/553.35 = 316.53/x
  3. Step 3: Cross multiply
    371.04x = 553.35 × 316.53
  4. Step 4: Simplify right side
    371.04x = 175,151.88
  5. Step 5: Solve for x
    x = 175,151.88/371.04
  6. Step 6: Final answer
    x = 472.06

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.