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Finding the Fourth Proportional to 404.11, 557.35 and 264.12

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Solution

The fourth proportional to 404.11, 557.35 and 264.12 is: 364.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    404.11 : 557.35 = 264.12 : x
  2. Step 2: Convert to fraction form
    404.11/557.35 = 264.12/x
  3. Step 3: Cross multiply
    404.11x = 557.35 × 264.12
  4. Step 4: Simplify right side
    404.11x = 147,207.28
  5. Step 5: Solve for x
    x = 147,207.28/404.11
  6. Step 6: Final answer
    x = 364.28

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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.