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Finding the Fourth Proportional to 637.24, 880.08 and 404.50

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Solution

The fourth proportional to 637.24, 880.08 and 404.50 is: 558.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.24 : 880.08 = 404.50 : x
  2. Step 2: Convert to fraction form
    637.24/880.08 = 404.50/x
  3. Step 3: Cross multiply
    637.24x = 880.08 × 404.50
  4. Step 4: Simplify right side
    637.24x = 355,992.36
  5. Step 5: Solve for x
    x = 355,992.36/637.24
  6. Step 6: Final answer
    x = 558.65

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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.