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Finding the Fourth Proportional to 216,297.77, 324,477.50 and 66,550.64

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Solution

The fourth proportional to 216,297.77, 324,477.50 and 66,550.64 is: 99,835.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,297.77 : 324,477.50 = 66,550.64 : x
  2. Step 2: Convert to fraction form
    216,297.77/324,477.50 = 66,550.64/x
  3. Step 3: Cross multiply
    216,297.77x = 324,477.50 × 66,550.64
  4. Step 4: Simplify right side
    216,297.77x = 21,594,183,335.46
  5. Step 5: Solve for x
    x = 21,594,183,335.46/216,297.77
  6. Step 6: Final answer
    x = 99,835.44

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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.