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Finding the Fourth Proportional to 404.42, 558.06 and 273.47

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Solution

The fourth proportional to 404.42, 558.06 and 273.47 is: 377.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    404.42 : 558.06 = 273.47 : x
  2. Step 2: Convert to fraction form
    404.42/558.06 = 273.47/x
  3. Step 3: Cross multiply
    404.42x = 558.06 × 273.47
  4. Step 4: Simplify right side
    404.42x = 152,612.67
  5. Step 5: Solve for x
    x = 152,612.67/404.42
  6. Step 6: Final answer
    x = 377.36

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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.