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Finding the Fourth Proportional to 401.19, 601.03 and 358.30

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Solution

The fourth proportional to 401.19, 601.03 and 358.30 is: 536.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    401.19 : 601.03 = 358.30 : x
  2. Step 2: Convert to fraction form
    401.19/601.03 = 358.30/x
  3. Step 3: Cross multiply
    401.19x = 601.03 × 358.30
  4. Step 4: Simplify right side
    401.19x = 215,349.05
  5. Step 5: Solve for x
    x = 215,349.05/401.19
  6. Step 6: Final answer
    x = 536.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.