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Finding the Fourth Proportional to 404.08, 557.53 and 246.79

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Solution

The fourth proportional to 404.08, 557.53 and 246.79 is: 340.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    404.08 : 557.53 = 246.79 : x
  2. Step 2: Convert to fraction form
    404.08/557.53 = 246.79/x
  3. Step 3: Cross multiply
    404.08x = 557.53 × 246.79
  4. Step 4: Simplify right side
    404.08x = 137,592.83
  5. Step 5: Solve for x
    x = 137,592.83/404.08
  6. Step 6: Final answer
    x = 340.51

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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.