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Finding the Fourth Proportional to 631.08, 941.25 and 543.42

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Solution

The fourth proportional to 631.08, 941.25 and 543.42 is: 810.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    631.08 : 941.25 = 543.42 : x
  2. Step 2: Convert to fraction form
    631.08/941.25 = 543.42/x
  3. Step 3: Cross multiply
    631.08x = 941.25 × 543.42
  4. Step 4: Simplify right side
    631.08x = 511,494.08
  5. Step 5: Solve for x
    x = 511,494.08/631.08
  6. Step 6: Final answer
    x = 810.51

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.