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Finding the Fourth Proportional to 649.16, 973.41 and 356.57

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Solution

The fourth proportional to 649.16, 973.41 and 356.57 is: 534.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    649.16 : 973.41 = 356.57 : x
  2. Step 2: Convert to fraction form
    649.16/973.41 = 356.57/x
  3. Step 3: Cross multiply
    649.16x = 973.41 × 356.57
  4. Step 4: Simplify right side
    649.16x = 347,083.94
  5. Step 5: Solve for x
    x = 347,083.94/649.16
  6. Step 6: Final answer
    x = 534.67

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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.