Home / 220,972.64-304,942.32-120,370.64

Finding the Fourth Proportional to 220,972.64, 304,942.32 and 120,370.64

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Solution

The fourth proportional to 220,972.64, 304,942.32 and 120,370.64 is: 166,111.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,972.64 : 304,942.32 = 120,370.64 : x
  2. Step 2: Convert to fraction form
    220,972.64/304,942.32 = 120,370.64/x
  3. Step 3: Cross multiply
    220,972.64x = 304,942.32 × 120,370.64
  4. Step 4: Simplify right side
    220,972.64x = 36,706,102,221.48
  5. Step 5: Solve for x
    x = 36,706,102,221.48/220,972.64
  6. Step 6: Final answer
    x = 166,111.53

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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.