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Finding the Fourth Proportional to 635.66, 877.32 and 373.68

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Solution

The fourth proportional to 635.66, 877.32 and 373.68 is: 515.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.66 : 877.32 = 373.68 : x
  2. Step 2: Convert to fraction form
    635.66/877.32 = 373.68/x
  3. Step 3: Cross multiply
    635.66x = 877.32 × 373.68
  4. Step 4: Simplify right side
    635.66x = 327,836.94
  5. Step 5: Solve for x
    x = 327,836.94/635.66
  6. Step 6: Final answer
    x = 515.74

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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.