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Finding the Fourth Proportional to 221,866.80, 333,018.90 and 109,673.70

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Solution

The fourth proportional to 221,866.80, 333,018.90 and 109,673.70 is: 164,618.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,866.80 : 333,018.90 = 109,673.70 : x
  2. Step 2: Convert to fraction form
    221,866.80/333,018.90 = 109,673.70/x
  3. Step 3: Cross multiply
    221,866.80x = 333,018.90 × 109,673.70
  4. Step 4: Simplify right side
    221,866.80x = 36,523,414,932.93
  5. Step 5: Solve for x
    x = 36,523,414,932.93/221,866.80
  6. Step 6: Final answer
    x = 164,618.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.