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Finding the Fourth Proportional to 218,269.06, 327,404.40 and 66,467.50

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Solution

The fourth proportional to 218,269.06, 327,404.40 and 66,467.50 is: 99,701.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,269.06 : 327,404.40 = 66,467.50 : x
  2. Step 2: Convert to fraction form
    218,269.06/327,404.40 = 66,467.50/x
  3. Step 3: Cross multiply
    218,269.06x = 327,404.40 × 66,467.50
  4. Step 4: Simplify right side
    218,269.06x = 21,761,751,957
  5. Step 5: Solve for x
    x = 21,761,751,957/218,269.06
  6. Step 6: Final answer
    x = 99,701.50

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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.