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Finding the Fourth Proportional to 484.16, 726.23 and 291.38

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Solution

The fourth proportional to 484.16, 726.23 and 291.38 is: 437.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.16 : 726.23 = 291.38 : x
  2. Step 2: Convert to fraction form
    484.16/726.23 = 291.38/x
  3. Step 3: Cross multiply
    484.16x = 726.23 × 291.38
  4. Step 4: Simplify right side
    484.16x = 211,605.99
  5. Step 5: Solve for x
    x = 211,605.99/484.16
  6. Step 6: Final answer
    x = 437.06

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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.