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Finding the Fourth Proportional to 220,981.73, 304,954.85 and 120,379.73

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Solution

The fourth proportional to 220,981.73, 304,954.85 and 120,379.73 is: 166,124.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,981.73 : 304,954.85 = 120,379.73 : x
  2. Step 2: Convert to fraction form
    220,981.73/304,954.85 = 120,379.73/x
  3. Step 3: Cross multiply
    220,981.73x = 304,954.85 × 120,379.73
  4. Step 4: Simplify right side
    220,981.73x = 36,710,382,665.68
  5. Step 5: Solve for x
    x = 36,710,382,665.68/220,981.73
  6. Step 6: Final answer
    x = 166,124.06

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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.