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Finding the Fourth Proportional to 346.48, 477.49 and 248.07

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Solution

The fourth proportional to 346.48, 477.49 and 248.07 is: 341.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    346.48 : 477.49 = 248.07 : x
  2. Step 2: Convert to fraction form
    346.48/477.49 = 248.07/x
  3. Step 3: Cross multiply
    346.48x = 477.49 × 248.07
  4. Step 4: Simplify right side
    346.48x = 118,447.50
  5. Step 5: Solve for x
    x = 118,447.50/346.48
  6. Step 6: Final answer
    x = 341.86

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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.