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Finding the Fourth Proportional to 684.43, 944.55 and 373.93

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Solution

The fourth proportional to 684.43, 944.55 and 373.93 is: 516.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    684.43 : 944.55 = 373.93 : x
  2. Step 2: Convert to fraction form
    684.43/944.55 = 373.93/x
  3. Step 3: Cross multiply
    684.43x = 944.55 × 373.93
  4. Step 4: Simplify right side
    684.43x = 353,195.58
  5. Step 5: Solve for x
    x = 353,195.58/684.43
  6. Step 6: Final answer
    x = 516.04

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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.