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Finding the Fourth Proportional to 216,244.56, 324,397.80 and 66,497.40

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Solution

The fourth proportional to 216,244.56, 324,397.80 and 66,497.40 is: 99,755.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,244.56 : 324,397.80 = 66,497.40 : x
  2. Step 2: Convert to fraction form
    216,244.56/324,397.80 = 66,497.40/x
  3. Step 3: Cross multiply
    216,244.56x = 324,397.80 × 66,497.40
  4. Step 4: Simplify right side
    216,244.56x = 21,571,610,265.72
  5. Step 5: Solve for x
    x = 21,571,610,265.72/216,244.56
  6. Step 6: Final answer
    x = 99,755.62

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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.