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Finding the Fourth Proportional to 220,090.08, 330,156.96 and 79,859.64

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Solution

The fourth proportional to 220,090.08, 330,156.96 and 79,859.64 is: 119,797.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,090.08 : 330,156.96 = 79,859.64 : x
  2. Step 2: Convert to fraction form
    220,090.08/330,156.96 = 79,859.64/x
  3. Step 3: Cross multiply
    220,090.08x = 330,156.96 × 79,859.64
  4. Step 4: Simplify right side
    220,090.08x = 26,366,215,969.09
  5. Step 5: Solve for x
    x = 26,366,215,969.09/220,090.08
  6. Step 6: Final answer
    x = 119,797.38

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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.