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Finding the Fourth Proportional to 673.57, 1,010.36 and 240.71

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Solution

The fourth proportional to 673.57, 1,010.36 and 240.71 is: 361.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    673.57 : 1,010.36 = 240.71 : x
  2. Step 2: Convert to fraction form
    673.57/1,010.36 = 240.71/x
  3. Step 3: Cross multiply
    673.57x = 1,010.36 × 240.71
  4. Step 4: Simplify right side
    673.57x = 243,202.55
  5. Step 5: Solve for x
    x = 243,202.55/673.57
  6. Step 6: Final answer
    x = 361.07

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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.