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Finding the Fourth Proportional to 216,345.44, 324,548.92 and 66,598.22

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Solution

The fourth proportional to 216,345.44, 324,548.92 and 66,598.22 is: 99,906.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,345.44 : 324,548.92 = 66,598.22 : x
  2. Step 2: Convert to fraction form
    216,345.44/324,548.92 = 66,598.22/x
  3. Step 3: Cross multiply
    216,345.44x = 324,548.92 × 66,598.22
  4. Step 4: Simplify right side
    216,345.44x = 21,614,380,374.92
  5. Step 5: Solve for x
    x = 21,614,380,374.92/216,345.44
  6. Step 6: Final answer
    x = 99,906.80

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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.