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Finding the Fourth Proportional to 851,878.81, 1,277,817 and 220,793.23

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Solution

The fourth proportional to 851,878.81, 1,277,817 and 220,793.23 is: 331,189.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,878.81 : 1,277,817 = 220,793.23 : x
  2. Step 2: Convert to fraction form
    851,878.81/1,277,817 = 220,793.23/x
  3. Step 3: Cross multiply
    851,878.81x = 1,277,817 × 220,793.23
  4. Step 4: Simplify right side
    851,878.81x = 282,133,342,778.91
  5. Step 5: Solve for x
    x = 282,133,342,778.91/851,878.81
  6. Step 6: Final answer
    x = 331,189.53

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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.