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Finding the Fourth Proportional to 523.44, 722.21 and 302.36

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Solution

The fourth proportional to 523.44, 722.21 and 302.36 is: 417.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    523.44 : 722.21 = 302.36 : x
  2. Step 2: Convert to fraction form
    523.44/722.21 = 302.36/x
  3. Step 3: Cross multiply
    523.44x = 722.21 × 302.36
  4. Step 4: Simplify right side
    523.44x = 218,362.29
  5. Step 5: Solve for x
    x = 218,362.29/523.44
  6. Step 6: Final answer
    x = 417.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.