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Finding the Fourth Proportional to 344.81, 476.25 and 228.17

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Solution

The fourth proportional to 344.81, 476.25 and 228.17 is: 315.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    344.81 : 476.25 = 228.17 : x
  2. Step 2: Convert to fraction form
    344.81/476.25 = 228.17/x
  3. Step 3: Cross multiply
    344.81x = 476.25 × 228.17
  4. Step 4: Simplify right side
    344.81x = 108,666.30
  5. Step 5: Solve for x
    x = 108,666.30/344.81
  6. Step 6: Final answer
    x = 315.15

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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.