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Finding the Fourth Proportional to 403.58, 557.03 and 246.24

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Solution

The fourth proportional to 403.58, 557.03 and 246.24 is: 339.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    403.58 : 557.03 = 246.24 : x
  2. Step 2: Convert to fraction form
    403.58/557.03 = 246.24/x
  3. Step 3: Cross multiply
    403.58x = 557.03 × 246.24
  4. Step 4: Simplify right side
    403.58x = 137,162.30
  5. Step 5: Solve for x
    x = 137,162.30/403.58
  6. Step 6: Final answer
    x = 339.86

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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.