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Finding the Fourth Proportional to 367.49, 553.72 and 303.91

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Solution

The fourth proportional to 367.49, 553.72 and 303.91 is: 457.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    367.49 : 553.72 = 303.91 : x
  2. Step 2: Convert to fraction form
    367.49/553.72 = 303.91/x
  3. Step 3: Cross multiply
    367.49x = 553.72 × 303.91
  4. Step 4: Simplify right side
    367.49x = 168,282.59
  5. Step 5: Solve for x
    x = 168,282.59/367.49
  6. Step 6: Final answer
    x = 457.93

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.