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Finding the Fourth Proportional to 630.23, 943.90 and 541.39

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Solution

The fourth proportional to 630.23, 943.90 and 541.39 is: 810.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.23 : 943.90 = 541.39 : x
  2. Step 2: Convert to fraction form
    630.23/943.90 = 541.39/x
  3. Step 3: Cross multiply
    630.23x = 943.90 × 541.39
  4. Step 4: Simplify right side
    630.23x = 511,014.31
  5. Step 5: Solve for x
    x = 511,014.31/630.23
  6. Step 6: Final answer
    x = 810.83

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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.