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Finding the Fourth Proportional to 397.10, 596.01 and 214.67

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Solution

The fourth proportional to 397.10, 596.01 and 214.67 is: 322.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    397.10 : 596.01 = 214.67 : x
  2. Step 2: Convert to fraction form
    397.10/596.01 = 214.67/x
  3. Step 3: Cross multiply
    397.10x = 596.01 × 214.67
  4. Step 4: Simplify right side
    397.10x = 127,945.47
  5. Step 5: Solve for x
    x = 127,945.47/397.10
  6. Step 6: Final answer
    x = 322.20

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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.