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Finding the Fourth Proportional to 370,711.80, 511,568.54 and 200,942.28

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Solution

The fourth proportional to 370,711.80, 511,568.54 and 200,942.28 is: 277,292.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,711.80 : 511,568.54 = 200,942.28 : x
  2. Step 2: Convert to fraction form
    370,711.80/511,568.54 = 200,942.28/x
  3. Step 3: Cross multiply
    370,711.80x = 511,568.54 × 200,942.28
  4. Step 4: Simplify right side
    370,711.80x = 102,795,748,803.87
  5. Step 5: Solve for x
    x = 102,795,748,803.87/370,711.80
  6. Step 6: Final answer
    x = 277,292.90

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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.