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Finding the Fourth Proportional to 199,311.79, 299,140.42 and 104,608.87

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Solution

The fourth proportional to 199,311.79, 299,140.42 and 104,608.87 is: 157,003.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,311.79 : 299,140.42 = 104,608.87 : x
  2. Step 2: Convert to fraction form
    199,311.79/299,140.42 = 104,608.87/x
  3. Step 3: Cross multiply
    199,311.79x = 299,140.42 × 104,608.87
  4. Step 4: Simplify right side
    199,311.79x = 31,292,740,200.08
  5. Step 5: Solve for x
    x = 31,292,740,200.08/199,311.79
  6. Step 6: Final answer
    x = 157,003.96

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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.