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Finding the Fourth Proportional to 221,897.94, 306,219.20 and 119,923.07

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Solution

The fourth proportional to 221,897.94, 306,219.20 and 119,923.07 is: 165,493.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,897.94 : 306,219.20 = 119,923.07 : x
  2. Step 2: Convert to fraction form
    221,897.94/306,219.20 = 119,923.07/x
  3. Step 3: Cross multiply
    221,897.94x = 306,219.20 × 119,923.07
  4. Step 4: Simplify right side
    221,897.94x = 36,722,744,426.23
  5. Step 5: Solve for x
    x = 36,722,744,426.23/221,897.94
  6. Step 6: Final answer
    x = 165,493.85

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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.