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Finding the Fourth Proportional to 477.36, 716.19 and 322.87

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Solution

The fourth proportional to 477.36, 716.19 and 322.87 is: 484.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    477.36 : 716.19 = 322.87 : x
  2. Step 2: Convert to fraction form
    477.36/716.19 = 322.87/x
  3. Step 3: Cross multiply
    477.36x = 716.19 × 322.87
  4. Step 4: Simplify right side
    477.36x = 231,236.27
  5. Step 5: Solve for x
    x = 231,236.27/477.36
  6. Step 6: Final answer
    x = 484.41

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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.