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Finding the Fourth Proportional to 649.67, 973.83 and 371.67

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Solution

The fourth proportional to 649.67, 973.83 and 371.67 is: 557.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    649.67 : 973.83 = 371.67 : x
  2. Step 2: Convert to fraction form
    649.67/973.83 = 371.67/x
  3. Step 3: Cross multiply
    649.67x = 973.83 × 371.67
  4. Step 4: Simplify right side
    649.67x = 361,941.14
  5. Step 5: Solve for x
    x = 361,941.14/649.67
  6. Step 6: Final answer
    x = 557.12

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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.