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Finding the Fourth Proportional to 649.23, 896.04 and 369.48

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Solution

The fourth proportional to 649.23, 896.04 and 369.48 is: 509.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    649.23 : 896.04 = 369.48 : x
  2. Step 2: Convert to fraction form
    649.23/896.04 = 369.48/x
  3. Step 3: Cross multiply
    649.23x = 896.04 × 369.48
  4. Step 4: Simplify right side
    649.23x = 331,068.86
  5. Step 5: Solve for x
    x = 331,068.86/649.23
  6. Step 6: Final answer
    x = 509.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.