Home / 216,600.96-324,944.75-66,835.62

Finding the Fourth Proportional to 216,600.96, 324,944.75 and 66,835.62

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Solution

The fourth proportional to 216,600.96, 324,944.75 and 66,835.62 is: 100,266.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,600.96 : 324,944.75 = 66,835.62 : x
  2. Step 2: Convert to fraction form
    216,600.96/324,944.75 = 66,835.62/x
  3. Step 3: Cross multiply
    216,600.96x = 324,944.75 × 66,835.62
  4. Step 4: Simplify right side
    216,600.96x = 21,717,883,832.00
  5. Step 5: Solve for x
    x = 21,717,883,832.00/216,600.96
  6. Step 6: Final answer
    x = 100,266.79

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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.