Home / 279,818.20-419,727.30-92,829.70

Finding the Fourth Proportional to 279,818.20, 419,727.30 and 92,829.70

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Solution

The fourth proportional to 279,818.20, 419,727.30 and 92,829.70 is: 139,244.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,818.20 : 419,727.30 = 92,829.70 : x
  2. Step 2: Convert to fraction form
    279,818.20/419,727.30 = 92,829.70/x
  3. Step 3: Cross multiply
    279,818.20x = 419,727.30 × 92,829.70
  4. Step 4: Simplify right side
    279,818.20x = 38,963,159,340.81
  5. Step 5: Solve for x
    x = 38,963,159,340.81/279,818.20
  6. Step 6: Final answer
    x = 139,244.55

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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.