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Finding the Fourth Proportional to 636.02, 877.66 and 370.45

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Solution

The fourth proportional to 636.02, 877.66 and 370.45 is: 511.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    636.02 : 877.66 = 370.45 : x
  2. Step 2: Convert to fraction form
    636.02/877.66 = 370.45/x
  3. Step 3: Cross multiply
    636.02x = 877.66 × 370.45
  4. Step 4: Simplify right side
    636.02x = 325,122.91
  5. Step 5: Solve for x
    x = 325,122.91/636.02
  6. Step 6: Final answer
    x = 511.19

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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.