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Finding the Fourth Proportional to 346.85, 477.99 and 248.43

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Solution

The fourth proportional to 346.85, 477.99 and 248.43 is: 342.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    346.85 : 477.99 = 248.43 : x
  2. Step 2: Convert to fraction form
    346.85/477.99 = 248.43/x
  3. Step 3: Cross multiply
    346.85x = 477.99 × 248.43
  4. Step 4: Simplify right side
    346.85x = 118,747.06
  5. Step 5: Solve for x
    x = 118,747.06/346.85
  6. Step 6: Final answer
    x = 342.36

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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.