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Finding the Fourth Proportional to 500,179.64, 690,247.79 and 270,736.88

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Solution

The fourth proportional to 500,179.64, 690,247.79 and 270,736.88 is: 373,616.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,179.64 : 690,247.79 = 270,736.88 : x
  2. Step 2: Convert to fraction form
    500,179.64/690,247.79 = 270,736.88/x
  3. Step 3: Cross multiply
    500,179.64x = 690,247.79 × 270,736.88
  4. Step 4: Simplify right side
    500,179.64x = 186,875,528,286.57
  5. Step 5: Solve for x
    x = 186,875,528,286.57/500,179.64
  6. Step 6: Final answer
    x = 373,616.83

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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.