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Finding the Fourth Proportional to 635.63, 877.23 and 373.86

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Solution

The fourth proportional to 635.63, 877.23 and 373.86 is: 515.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.63 : 877.23 = 373.86 : x
  2. Step 2: Convert to fraction form
    635.63/877.23 = 373.86/x
  3. Step 3: Cross multiply
    635.63x = 877.23 × 373.86
  4. Step 4: Simplify right side
    635.63x = 327,961.21
  5. Step 5: Solve for x
    x = 327,961.21/635.63
  6. Step 6: Final answer
    x = 515.97

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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.