Home / 221,172.25-331,758.38-73,428.25

Finding the Fourth Proportional to 221,172.25, 331,758.38 and 73,428.25

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Solution

The fourth proportional to 221,172.25, 331,758.38 and 73,428.25 is: 110,142.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,172.25 : 331,758.38 = 73,428.25 : x
  2. Step 2: Convert to fraction form
    221,172.25/331,758.38 = 73,428.25/x
  3. Step 3: Cross multiply
    221,172.25x = 331,758.38 × 73,428.25
  4. Step 4: Simplify right side
    221,172.25x = 24,360,437,266.24
  5. Step 5: Solve for x
    x = 24,360,437,266.24/221,172.25
  6. Step 6: Final answer
    x = 110,142.38

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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.