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Finding the Fourth Proportional to 401.18, 598.89 and 372.63

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Solution

The fourth proportional to 401.18, 598.89 and 372.63 is: 556.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    401.18 : 598.89 = 372.63 : x
  2. Step 2: Convert to fraction form
    401.18/598.89 = 372.63/x
  3. Step 3: Cross multiply
    401.18x = 598.89 × 372.63
  4. Step 4: Simplify right side
    401.18x = 223,161.39
  5. Step 5: Solve for x
    x = 223,161.39/401.18
  6. Step 6: Final answer
    x = 556.27

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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.