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Finding the Fourth Proportional to 427.08, 589.44 and 252.40

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Solution

The fourth proportional to 427.08, 589.44 and 252.40 is: 348.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    427.08 : 589.44 = 252.40 : x
  2. Step 2: Convert to fraction form
    427.08/589.44 = 252.40/x
  3. Step 3: Cross multiply
    427.08x = 589.44 × 252.40
  4. Step 4: Simplify right side
    427.08x = 148,774.66
  5. Step 5: Solve for x
    x = 148,774.66/427.08
  6. Step 6: Final answer
    x = 348.35

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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.