Home / 221,018.15-304,763.69-149,273.61

Finding the Fourth Proportional to 221,018.15, 304,763.69 and 149,273.61

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Solution

The fourth proportional to 221,018.15, 304,763.69 and 149,273.61 is: 205,834.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,018.15 : 304,763.69 = 149,273.61 : x
  2. Step 2: Convert to fraction form
    221,018.15/304,763.69 = 149,273.61/x
  3. Step 3: Cross multiply
    221,018.15x = 304,763.69 × 149,273.61
  4. Step 4: Simplify right side
    221,018.15x = 45,493,175,456.85
  5. Step 5: Solve for x
    x = 45,493,175,456.85/221,018.15
  6. Step 6: Final answer
    x = 205,834.57

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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.