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Finding the Fourth Proportional to 216,861.92, 324,922.71 and 153,576.90

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Solution

The fourth proportional to 216,861.92, 324,922.71 and 153,576.90 is: 230,103.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,861.92 : 324,922.71 = 153,576.90 : x
  2. Step 2: Convert to fraction form
    216,861.92/324,922.71 = 153,576.90/x
  3. Step 3: Cross multiply
    216,861.92x = 324,922.71 × 153,576.90
  4. Step 4: Simplify right side
    216,861.92x = 49,900,622,541.40
  5. Step 5: Solve for x
    x = 49,900,622,541.40/216,861.92
  6. Step 6: Final answer
    x = 230,103.21

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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.