Home / 279,479.04-419,195.52-92,428.80

Finding the Fourth Proportional to 279,479.04, 419,195.52 and 92,428.80

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Solution

The fourth proportional to 279,479.04, 419,195.52 and 92,428.80 is: 138,635.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,479.04 : 419,195.52 = 92,428.80 : x
  2. Step 2: Convert to fraction form
    279,479.04/419,195.52 = 92,428.80/x
  3. Step 3: Cross multiply
    279,479.04x = 419,195.52 × 92,428.80
  4. Step 4: Simplify right side
    279,479.04x = 38,745,738,878.98
  5. Step 5: Solve for x
    x = 38,745,738,878.98/279,479.04
  6. Step 6: Final answer
    x = 138,635.58

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1.5x scale

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.