Home / 215,984.46-324,038.87-66,246.72

Finding the Fourth Proportional to 215,984.46, 324,038.87 and 66,246.72

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Solution

The fourth proportional to 215,984.46, 324,038.87 and 66,246.72 is: 99,389.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,984.46 : 324,038.87 = 66,246.72 : x
  2. Step 2: Convert to fraction form
    215,984.46/324,038.87 = 66,246.72/x
  3. Step 3: Cross multiply
    215,984.46x = 324,038.87 × 66,246.72
  4. Step 4: Simplify right side
    215,984.46x = 21,466,512,290.01
  5. Step 5: Solve for x
    x = 21,466,512,290.01/215,984.46
  6. Step 6: Final answer
    x = 99,389.15

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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.