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Finding the Fourth Proportional to 370,639.88, 511,483.92 and 200,873.96

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Solution

The fourth proportional to 370,639.88, 511,483.92 and 200,873.96 is: 277,206.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,639.88 : 511,483.92 = 200,873.96 : x
  2. Step 2: Convert to fraction form
    370,639.88/511,483.92 = 200,873.96/x
  3. Step 3: Cross multiply
    370,639.88x = 511,483.92 × 200,873.96
  4. Step 4: Simplify right side
    370,639.88x = 102,743,800,486.72
  5. Step 5: Solve for x
    x = 102,743,800,486.72/370,639.88
  6. Step 6: Final answer
    x = 277,206.54

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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.