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Finding the Fourth Proportional to 400.05, 597.15 and 372.69

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Solution

The fourth proportional to 400.05, 597.15 and 372.69 is: 556.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    400.05 : 597.15 = 372.69 : x
  2. Step 2: Convert to fraction form
    400.05/597.15 = 372.69/x
  3. Step 3: Cross multiply
    400.05x = 597.15 × 372.69
  4. Step 4: Simplify right side
    400.05x = 222,551.83
  5. Step 5: Solve for x
    x = 222,551.83/400.05
  6. Step 6: Final answer
    x = 556.31

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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.