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Finding the Fourth Proportional to 202,124.80, 303,843.30 and 143,367.40

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Solution

The fourth proportional to 202,124.80, 303,843.30 and 143,367.40 is: 215,516.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,124.80 : 303,843.30 = 143,367.40 : x
  2. Step 2: Convert to fraction form
    202,124.80/303,843.30 = 143,367.40/x
  3. Step 3: Cross multiply
    202,124.80x = 303,843.30 × 143,367.40
  4. Step 4: Simplify right side
    202,124.80x = 43,561,223,928.42
  5. Step 5: Solve for x
    x = 43,561,223,928.42/202,124.80
  6. Step 6: Final answer
    x = 215,516.47

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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.