Home / 216,573.28-324,641.74-90,283.38

Finding the Fourth Proportional to 216,573.28, 324,641.74 and 90,283.38

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Solution

The fourth proportional to 216,573.28, 324,641.74 and 90,283.38 is: 135,334.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,573.28 : 324,641.74 = 90,283.38 : x
  2. Step 2: Convert to fraction form
    216,573.28/324,641.74 = 90,283.38/x
  3. Step 3: Cross multiply
    216,573.28x = 324,641.74 × 90,283.38
  4. Step 4: Simplify right side
    216,573.28x = 29,309,753,576.28
  5. Step 5: Solve for x
    x = 29,309,753,576.28/216,573.28
  6. Step 6: Final answer
    x = 135,334.12

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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.