Home / 321,237.35-481,857.11-81,351.13

Finding the Fourth Proportional to 321,237.35, 481,857.11 and 81,351.13

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Solution

The fourth proportional to 321,237.35, 481,857.11 and 81,351.13 is: 122,026.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,237.35 : 481,857.11 = 81,351.13 : x
  2. Step 2: Convert to fraction form
    321,237.35/481,857.11 = 81,351.13/x
  3. Step 3: Cross multiply
    321,237.35x = 481,857.11 × 81,351.13
  4. Step 4: Simplify right side
    321,237.35x = 39,199,617,580.99
  5. Step 5: Solve for x
    x = 39,199,617,580.99/321,237.35
  6. Step 6: Final answer
    x = 122,026.96

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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.