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Finding the Fourth Proportional to 220,906.87, 304,836.98 and 130,258.45

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Solution

The fourth proportional to 220,906.87, 304,836.98 and 130,258.45 is: 179,748.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,906.87 : 304,836.98 = 130,258.45 : x
  2. Step 2: Convert to fraction form
    220,906.87/304,836.98 = 130,258.45/x
  3. Step 3: Cross multiply
    220,906.87x = 304,836.98 × 130,258.45
  4. Step 4: Simplify right side
    220,906.87x = 39,707,592,517.48
  5. Step 5: Solve for x
    x = 39,707,592,517.48/220,906.87
  6. Step 6: Final answer
    x = 179,748.11

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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.