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Finding the Fourth Proportional to 356.56, 492.26 and 246.20

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Solution

The fourth proportional to 356.56, 492.26 and 246.20 is: 339.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    356.56 : 492.26 = 246.20 : x
  2. Step 2: Convert to fraction form
    356.56/492.26 = 246.20/x
  3. Step 3: Cross multiply
    356.56x = 492.26 × 246.20
  4. Step 4: Simplify right side
    356.56x = 121,193.18
  5. Step 5: Solve for x
    x = 121,193.18/356.56
  6. Step 6: Final answer
    x = 339.90

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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.