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Finding the Fourth Proportional to 618.10, 927.10 and 374.46

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Solution

The fourth proportional to 618.10, 927.10 and 374.46 is: 561.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    618.10 : 927.10 = 374.46 : x
  2. Step 2: Convert to fraction form
    618.10/927.10 = 374.46/x
  3. Step 3: Cross multiply
    618.10x = 927.10 × 374.46
  4. Step 4: Simplify right side
    618.10x = 347,161.87
  5. Step 5: Solve for x
    x = 347,161.87/618.10
  6. Step 6: Final answer
    x = 561.66

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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.