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Finding the Fourth Proportional to 562.21, 842.12 and 356.67

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Solution

The fourth proportional to 562.21, 842.12 and 356.67 is: 534.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    562.21 : 842.12 = 356.67 : x
  2. Step 2: Convert to fraction form
    562.21/842.12 = 356.67/x
  3. Step 3: Cross multiply
    562.21x = 842.12 × 356.67
  4. Step 4: Simplify right side
    562.21x = 300,355.62
  5. Step 5: Solve for x
    x = 300,355.62/562.21
  6. Step 6: Final answer
    x = 534.25

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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.