Home / 312,150.08-468,246.30-109,721.60

Finding the Fourth Proportional to 312,150.08, 468,246.30 and 109,721.60

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Solution

The fourth proportional to 312,150.08, 468,246.30 and 109,721.60 is: 164,589.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,150.08 : 468,246.30 = 109,721.60 : x
  2. Step 2: Convert to fraction form
    312,150.08/468,246.30 = 109,721.60/x
  3. Step 3: Cross multiply
    312,150.08x = 468,246.30 × 109,721.60
  4. Step 4: Simplify right side
    312,150.08x = 51,376,733,230.08
  5. Step 5: Solve for x
    x = 51,376,733,230.08/312,150.08
  6. Step 6: Final answer
    x = 164,589.84

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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.