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Finding the Fourth Proportional to 401.28, 598.98 and 367.08

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Solution

The fourth proportional to 401.28, 598.98 and 367.08 is: 547.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    401.28 : 598.98 = 367.08 : x
  2. Step 2: Convert to fraction form
    401.28/598.98 = 367.08/x
  3. Step 3: Cross multiply
    401.28x = 598.98 × 367.08
  4. Step 4: Simplify right side
    401.28x = 219,873.58
  5. Step 5: Solve for x
    x = 219,873.58/401.28
  6. Step 6: Final answer
    x = 547.93

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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.