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Finding the Fourth Proportional to 984.10, 1,476.37 and 334.83

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Solution

The fourth proportional to 984.10, 1,476.37 and 334.83 is: 502.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    984.10 : 1,476.37 = 334.83 : x
  2. Step 2: Convert to fraction form
    984.10/1,476.37 = 334.83/x
  3. Step 3: Cross multiply
    984.10x = 1,476.37 × 334.83
  4. Step 4: Simplify right side
    984.10x = 494,332.97
  5. Step 5: Solve for x
    x = 494,332.97/984.10
  6. Step 6: Final answer
    x = 502.32

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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.