Home / 279,964.20-419,946.30-92,975.70

Finding the Fourth Proportional to 279,964.20, 419,946.30 and 92,975.70

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Solution

The fourth proportional to 279,964.20, 419,946.30 and 92,975.70 is: 139,463.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,964.20 : 419,946.30 = 92,975.70 : x
  2. Step 2: Convert to fraction form
    279,964.20/419,946.30 = 92,975.70/x
  3. Step 3: Cross multiply
    279,964.20x = 419,946.30 × 92,975.70
  4. Step 4: Simplify right side
    279,964.20x = 39,044,801,204.91
  5. Step 5: Solve for x
    x = 39,044,801,204.91/279,964.20
  6. Step 6: Final answer
    x = 139,463.55

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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.