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Finding the Fourth Proportional to 1,218.02, 1,825.62 and 567.38

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Solution

The fourth proportional to 1,218.02, 1,825.62 and 567.38 is: 850.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218.02 : 1,825.62 = 567.38 : x
  2. Step 2: Convert to fraction form
    1,218.02/1,825.62 = 567.38/x
  3. Step 3: Cross multiply
    1,218.02x = 1,825.62 × 567.38
  4. Step 4: Simplify right side
    1,218.02x = 1,035,811.15
  5. Step 5: Solve for x
    x = 1,035,811.15/1,218.02
  6. Step 6: Final answer
    x = 850.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.