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Finding the Fourth Proportional to 213,608.01, 320,433.93 and 80,600.19

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Solution

The fourth proportional to 213,608.01, 320,433.93 and 80,600.19 is: 120,908.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,608.01 : 320,433.93 = 80,600.19 : x
  2. Step 2: Convert to fraction form
    213,608.01/320,433.93 = 80,600.19/x
  3. Step 3: Cross multiply
    213,608.01x = 320,433.93 × 80,600.19
  4. Step 4: Simplify right side
    213,608.01x = 25,827,035,640.45
  5. Step 5: Solve for x
    x = 25,827,035,640.45/213,608.01
  6. Step 6: Final answer
    x = 120,908.55

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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.