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Finding the Fourth Proportional to 637.21, 950.75 and 559.30

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Solution

The fourth proportional to 637.21, 950.75 and 559.30 is: 834.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.21 : 950.75 = 559.30 : x
  2. Step 2: Convert to fraction form
    637.21/950.75 = 559.30/x
  3. Step 3: Cross multiply
    637.21x = 950.75 × 559.30
  4. Step 4: Simplify right side
    637.21x = 531,754.48
  5. Step 5: Solve for x
    x = 531,754.48/637.21
  6. Step 6: Final answer
    x = 834.50

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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.