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Finding the Fourth Proportional to 537,219.80, 806,121.30 and 221,708.60

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Solution

The fourth proportional to 537,219.80, 806,121.30 and 221,708.60 is: 332,683.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,219.80 : 806,121.30 = 221,708.60 : x
  2. Step 2: Convert to fraction form
    537,219.80/806,121.30 = 221,708.60/x
  3. Step 3: Cross multiply
    537,219.80x = 806,121.30 × 221,708.60
  4. Step 4: Simplify right side
    537,219.80x = 178,724,024,853.18
  5. Step 5: Solve for x
    x = 178,724,024,853.18/537,219.80
  6. Step 6: Final answer
    x = 332,683.24

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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.