Home / 276,913.80-415,042.65-206,711.10

Finding the Fourth Proportional to 276,913.80, 415,042.65 and 206,711.10

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Solution

The fourth proportional to 276,913.80, 415,042.65 and 206,711.10 is: 309,821.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,913.80 : 415,042.65 = 206,711.10 : x
  2. Step 2: Convert to fraction form
    276,913.80/415,042.65 = 206,711.10/x
  3. Step 3: Cross multiply
    276,913.80x = 415,042.65 × 206,711.10
  4. Step 4: Simplify right side
    276,913.80x = 85,793,922,728.42
  5. Step 5: Solve for x
    x = 85,793,922,728.42/276,913.80
  6. Step 6: Final answer
    x = 309,821.77

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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.