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Finding the Fourth Proportional to 637.77, 880.31 and 375.94

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Solution

The fourth proportional to 637.77, 880.31 and 375.94 is: 518.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.77 : 880.31 = 375.94 : x
  2. Step 2: Convert to fraction form
    637.77/880.31 = 375.94/x
  3. Step 3: Cross multiply
    637.77x = 880.31 × 375.94
  4. Step 4: Simplify right side
    637.77x = 330,941.86
  5. Step 5: Solve for x
    x = 330,941.86/637.77
  6. Step 6: Final answer
    x = 518.90

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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.