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Finding the Fourth Proportional to 427.56, 590.12 and 334.12

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Solution

The fourth proportional to 427.56, 590.12 and 334.12 is: 461.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    427.56 : 590.12 = 334.12 : x
  2. Step 2: Convert to fraction form
    427.56/590.12 = 334.12/x
  3. Step 3: Cross multiply
    427.56x = 590.12 × 334.12
  4. Step 4: Simplify right side
    427.56x = 197,174.57
  5. Step 5: Solve for x
    x = 197,174.57/427.56
  6. Step 6: Final answer
    x = 461.16

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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.