Home / 230,906.70-346,360.05-81,315.90

Finding the Fourth Proportional to 230,906.70, 346,360.05 and 81,315.90

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Solution

The fourth proportional to 230,906.70, 346,360.05 and 81,315.90 is: 121,973.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,906.70 : 346,360.05 = 81,315.90 : x
  2. Step 2: Convert to fraction form
    230,906.70/346,360.05 = 81,315.90/x
  3. Step 3: Cross multiply
    230,906.70x = 346,360.05 × 81,315.90
  4. Step 4: Simplify right side
    230,906.70x = 28,164,579,189.80
  5. Step 5: Solve for x
    x = 28,164,579,189.80/230,906.70
  6. Step 6: Final answer
    x = 121,973.85

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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.