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Finding the Fourth Proportional to 636.02, 877.23 and 373.82

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Solution

The fourth proportional to 636.02, 877.23 and 373.82 is: 515.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    636.02 : 877.23 = 373.82 : x
  2. Step 2: Convert to fraction form
    636.02/877.23 = 373.82/x
  3. Step 3: Cross multiply
    636.02x = 877.23 × 373.82
  4. Step 4: Simplify right side
    636.02x = 327,926.12
  5. Step 5: Solve for x
    x = 327,926.12/636.02
  6. Step 6: Final answer
    x = 515.59

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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.