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Finding the Fourth Proportional to 616.42, 923.19 and 360.10

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Solution

The fourth proportional to 616.42, 923.19 and 360.10 is: 539.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    616.42 : 923.19 = 360.10 : x
  2. Step 2: Convert to fraction form
    616.42/923.19 = 360.10/x
  3. Step 3: Cross multiply
    616.42x = 923.19 × 360.10
  4. Step 4: Simplify right side
    616.42x = 332,440.72
  5. Step 5: Solve for x
    x = 332,440.72/616.42
  6. Step 6: Final answer
    x = 539.31

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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.