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Finding the Fourth Proportional to 375.14, 562.26 and 212.60

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Solution

The fourth proportional to 375.14, 562.26 and 212.60 is: 318.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    375.14 : 562.26 = 212.60 : x
  2. Step 2: Convert to fraction form
    375.14/562.26 = 212.60/x
  3. Step 3: Cross multiply
    375.14x = 562.26 × 212.60
  4. Step 4: Simplify right side
    375.14x = 119,536.48
  5. Step 5: Solve for x
    x = 119,536.48/375.14
  6. Step 6: Final answer
    x = 318.64

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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.