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Finding the Fourth Proportional to 344.29, 474.94 and 261.26

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Solution

The fourth proportional to 344.29, 474.94 and 261.26 is: 360.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    344.29 : 474.94 = 261.26 : x
  2. Step 2: Convert to fraction form
    344.29/474.94 = 261.26/x
  3. Step 3: Cross multiply
    344.29x = 474.94 × 261.26
  4. Step 4: Simplify right side
    344.29x = 124,082.82
  5. Step 5: Solve for x
    x = 124,082.82/344.29
  6. Step 6: Final answer
    x = 360.40

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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.