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Finding the Fourth Proportional to 371.37, 554.38 and 358.55

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Solution

The fourth proportional to 371.37, 554.38 and 358.55 is: 535.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    371.37 : 554.38 = 358.55 : x
  2. Step 2: Convert to fraction form
    371.37/554.38 = 358.55/x
  3. Step 3: Cross multiply
    371.37x = 554.38 × 358.55
  4. Step 4: Simplify right side
    371.37x = 198,770.18
  5. Step 5: Solve for x
    x = 198,770.18/371.37
  6. Step 6: Final answer
    x = 535.23

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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.