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Finding the Fourth Proportional to 370,756.70, 511,645.38 and 200,990.96

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Solution

The fourth proportional to 370,756.70, 511,645.38 and 200,990.96 is: 277,368.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,756.70 : 511,645.38 = 200,990.96 : x
  2. Step 2: Convert to fraction form
    370,756.70/511,645.38 = 200,990.96/x
  3. Step 3: Cross multiply
    370,756.70x = 511,645.38 × 200,990.96
  4. Step 4: Simplify right side
    370,756.70x = 102,836,096,105.77
  5. Step 5: Solve for x
    x = 102,836,096,105.77/370,756.70
  6. Step 6: Final answer
    x = 277,368.14

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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.