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Finding the Fourth Proportional to 220,902.60, 304,843.32 and 120,300.60

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Solution

The fourth proportional to 220,902.60, 304,843.32 and 120,300.60 is: 166,013.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,902.60 : 304,843.32 = 120,300.60 : x
  2. Step 2: Convert to fraction form
    220,902.60/304,843.32 = 120,300.60/x
  3. Step 3: Cross multiply
    220,902.60x = 304,843.32 × 120,300.60
  4. Step 4: Simplify right side
    220,902.60x = 36,672,834,301.99
  5. Step 5: Solve for x
    x = 36,672,834,301.99/220,902.60
  6. Step 6: Final answer
    x = 166,013.59

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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.