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Finding the Fourth Proportional to 563.22, 845.34 and 357.18

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Solution

The fourth proportional to 563.22, 845.34 and 357.18 is: 536.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    563.22 : 845.34 = 357.18 : x
  2. Step 2: Convert to fraction form
    563.22/845.34 = 357.18/x
  3. Step 3: Cross multiply
    563.22x = 845.34 × 357.18
  4. Step 4: Simplify right side
    563.22x = 301,934.03
  5. Step 5: Solve for x
    x = 301,934.03/563.22
  6. Step 6: Final answer
    x = 536.09

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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.