Home / 221,786.35-305,746.50-158,013.43

Finding the Fourth Proportional to 221,786.35, 305,746.50 and 158,013.43

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Solution

The fourth proportional to 221,786.35, 305,746.50 and 158,013.43 is: 217,831.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,786.35 : 305,746.50 = 158,013.43 : x
  2. Step 2: Convert to fraction form
    221,786.35/305,746.50 = 158,013.43/x
  3. Step 3: Cross multiply
    221,786.35x = 305,746.50 × 158,013.43
  4. Step 4: Simplify right side
    221,786.35x = 48,312,053,834.68
  5. Step 5: Solve for x
    x = 48,312,053,834.68/221,786.35
  6. Step 6: Final answer
    x = 217,831.50

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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.