Home / 279,228.30-418,683.78-190,589.10

Finding the Fourth Proportional to 279,228.30, 418,683.78 and 190,589.10

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Solution

The fourth proportional to 279,228.30, 418,683.78 and 190,589.10 is: 285,775.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,228.30 : 418,683.78 = 190,589.10 : x
  2. Step 2: Convert to fraction form
    279,228.30/418,683.78 = 190,589.10/x
  3. Step 3: Cross multiply
    279,228.30x = 418,683.78 × 190,589.10
  4. Step 4: Simplify right side
    279,228.30x = 79,796,564,814.80
  5. Step 5: Solve for x
    x = 79,796,564,814.80/279,228.30
  6. Step 6: Final answer
    x = 285,775.35

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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.