Home / 221,434.39-305,579.28-120,832.39

Finding the Fourth Proportional to 221,434.39, 305,579.28 and 120,832.39

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Solution

The fourth proportional to 221,434.39, 305,579.28 and 120,832.39 is: 166,748.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,434.39 : 305,579.28 = 120,832.39 : x
  2. Step 2: Convert to fraction form
    221,434.39/305,579.28 = 120,832.39/x
  3. Step 3: Cross multiply
    221,434.39x = 305,579.28 × 120,832.39
  4. Step 4: Simplify right side
    221,434.39x = 36,923,874,736.88
  5. Step 5: Solve for x
    x = 36,923,874,736.88/221,434.39
  6. Step 6: Final answer
    x = 166,748.60

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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.