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Finding the Fourth Proportional to 493,336.80, 680,806.89 and 266,982.30

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Solution

The fourth proportional to 493,336.80, 680,806.89 and 266,982.30 is: 368,436.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,336.80 : 680,806.89 = 266,982.30 : x
  2. Step 2: Convert to fraction form
    493,336.80/680,806.89 = 266,982.30/x
  3. Step 3: Cross multiply
    493,336.80x = 680,806.89 × 266,982.30
  4. Step 4: Simplify right side
    493,336.80x = 181,763,389,348.05
  5. Step 5: Solve for x
    x = 181,763,389,348.05/493,336.80
  6. Step 6: Final answer
    x = 368,436.71

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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.