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Finding the Fourth Proportional to 635.72, 877.06 and 373.64

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Solution

The fourth proportional to 635.72, 877.06 and 373.64 is: 515.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.72 : 877.06 = 373.64 : x
  2. Step 2: Convert to fraction form
    635.72/877.06 = 373.64/x
  3. Step 3: Cross multiply
    635.72x = 877.06 × 373.64
  4. Step 4: Simplify right side
    635.72x = 327,704.70
  5. Step 5: Solve for x
    x = 327,704.70/635.72
  6. Step 6: Final answer
    x = 515.49

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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.