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Finding the Fourth Proportional to 401.17, 601.20 and 303.59

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Solution

The fourth proportional to 401.17, 601.20 and 303.59 is: 454.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    401.17 : 601.20 = 303.59 : x
  2. Step 2: Convert to fraction form
    401.17/601.20 = 303.59/x
  3. Step 3: Cross multiply
    401.17x = 601.20 × 303.59
  4. Step 4: Simplify right side
    401.17x = 182,515.30
  5. Step 5: Solve for x
    x = 182,515.30/401.17
  6. Step 6: Final answer
    x = 454.96

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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.