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Finding the Fourth Proportional to 427.92, 590.64 and 250.92

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Solution

The fourth proportional to 427.92, 590.64 and 250.92 is: 346.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    427.92 : 590.64 = 250.92 : x
  2. Step 2: Convert to fraction form
    427.92/590.64 = 250.92/x
  3. Step 3: Cross multiply
    427.92x = 590.64 × 250.92
  4. Step 4: Simplify right side
    427.92x = 148,203.39
  5. Step 5: Solve for x
    x = 148,203.39/427.92
  6. Step 6: Final answer
    x = 346.33

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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.