Home / 220,983.36-304,956.48-120,381.12

Finding the Fourth Proportional to 220,983.36, 304,956.48 and 120,381.12

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Solution

The fourth proportional to 220,983.36, 304,956.48 and 120,381.12 is: 166,125.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,983.36 : 304,956.48 = 120,381.12 : x
  2. Step 2: Convert to fraction form
    220,983.36/304,956.48 = 120,381.12/x
  3. Step 3: Cross multiply
    220,983.36x = 304,956.48 × 120,381.12
  4. Step 4: Simplify right side
    220,983.36x = 36,711,002,613.66
  5. Step 5: Solve for x
    x = 36,711,002,613.66/220,983.36
  6. Step 6: Final answer
    x = 166,125.64

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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.