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Finding the Fourth Proportional to 346.37, 477.74 and 235.66

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Solution

The fourth proportional to 346.37, 477.74 and 235.66 is: 325.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    346.37 : 477.74 = 235.66 : x
  2. Step 2: Convert to fraction form
    346.37/477.74 = 235.66/x
  3. Step 3: Cross multiply
    346.37x = 477.74 × 235.66
  4. Step 4: Simplify right side
    346.37x = 112,584.21
  5. Step 5: Solve for x
    x = 112,584.21/346.37
  6. Step 6: Final answer
    x = 325.04

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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.