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Finding the Fourth Proportional to 409.58, 564.86 and 262.26

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Solution

The fourth proportional to 409.58, 564.86 and 262.26 is: 361.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    409.58 : 564.86 = 262.26 : x
  2. Step 2: Convert to fraction form
    409.58/564.86 = 262.26/x
  3. Step 3: Cross multiply
    409.58x = 564.86 × 262.26
  4. Step 4: Simplify right side
    409.58x = 148,140.18
  5. Step 5: Solve for x
    x = 148,140.18/409.58
  6. Step 6: Final answer
    x = 361.69

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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.