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Finding the Fourth Proportional to 400.05, 597.21 and 371.50

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Solution

The fourth proportional to 400.05, 597.21 and 371.50 is: 554.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    400.05 : 597.21 = 371.50 : x
  2. Step 2: Convert to fraction form
    400.05/597.21 = 371.50/x
  3. Step 3: Cross multiply
    400.05x = 597.21 × 371.50
  4. Step 4: Simplify right side
    400.05x = 221,862.02
  5. Step 5: Solve for x
    x = 221,862.02/400.05
  6. Step 6: Final answer
    x = 554.59

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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.