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Finding the Fourth Proportional to 410.22, 566.16 and 285.81

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Solution

The fourth proportional to 410.22, 566.16 and 285.81 is: 394.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    410.22 : 566.16 = 285.81 : x
  2. Step 2: Convert to fraction form
    410.22/566.16 = 285.81/x
  3. Step 3: Cross multiply
    410.22x = 566.16 × 285.81
  4. Step 4: Simplify right side
    410.22x = 161,814.19
  5. Step 5: Solve for x
    x = 161,814.19/410.22
  6. Step 6: Final answer
    x = 394.46

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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.