Home / 309,324.96-426,832.94-180,290.75

Finding the Fourth Proportional to 309,324.96, 426,832.94 and 180,290.75

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Solution

The fourth proportional to 309,324.96, 426,832.94 and 180,290.75 is: 248,780.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,324.96 : 426,832.94 = 180,290.75 : x
  2. Step 2: Convert to fraction form
    309,324.96/426,832.94 = 180,290.75/x
  3. Step 3: Cross multiply
    309,324.96x = 426,832.94 × 180,290.75
  4. Step 4: Simplify right side
    309,324.96x = 76,954,029,193.87
  5. Step 5: Solve for x
    x = 76,954,029,193.87/309,324.96
  6. Step 6: Final answer
    x = 248,780.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.