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Finding the Fourth Proportional to 285.12, 394.56 and 246.24

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Solution

The fourth proportional to 285.12, 394.56 and 246.24 is: 340.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    285.12 : 394.56 = 246.24 : x
  2. Step 2: Convert to fraction form
    285.12/394.56 = 246.24/x
  3. Step 3: Cross multiply
    285.12x = 394.56 × 246.24
  4. Step 4: Simplify right side
    285.12x = 97,156.45
  5. Step 5: Solve for x
    x = 97,156.45/285.12
  6. Step 6: Final answer
    x = 340.76

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.