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Finding the Fourth Proportional to 304,563.50, 420,488.28 and 195,711.92

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Solution

The fourth proportional to 304,563.50, 420,488.28 and 195,711.92 is: 270,204.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,563.50 : 420,488.28 = 195,711.92 : x
  2. Step 2: Convert to fraction form
    304,563.50/420,488.28 = 195,711.92/x
  3. Step 3: Cross multiply
    304,563.50x = 420,488.28 × 195,711.92
  4. Step 4: Simplify right side
    304,563.50x = 82,294,568,616.30
  5. Step 5: Solve for x
    x = 82,294,568,616.30/304,563.50
  6. Step 6: Final answer
    x = 270,204.96

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1.5x scale

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.