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Finding the Fourth Proportional to 220,259.64, 303,932.48 and 129,595.64

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Solution

The fourth proportional to 220,259.64, 303,932.48 and 129,595.64 is: 178,826.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,259.64 : 303,932.48 = 129,595.64 : x
  2. Step 2: Convert to fraction form
    220,259.64/303,932.48 = 129,595.64/x
  3. Step 3: Cross multiply
    220,259.64x = 303,932.48 × 129,595.64
  4. Step 4: Simplify right side
    220,259.64x = 39,388,324,262.39
  5. Step 5: Solve for x
    x = 39,388,324,262.39/220,259.64
  6. Step 6: Final answer
    x = 178,826.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.