Home / 221,205.40-305,250.28-125,698.84

Finding the Fourth Proportional to 221,205.40, 305,250.28 and 125,698.84

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Solution

The fourth proportional to 221,205.40, 305,250.28 and 125,698.84 is: 173,456.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,205.40 : 305,250.28 = 125,698.84 : x
  2. Step 2: Convert to fraction form
    221,205.40/305,250.28 = 125,698.84/x
  3. Step 3: Cross multiply
    221,205.40x = 305,250.28 × 125,698.84
  4. Step 4: Simplify right side
    221,205.40x = 38,369,606,105.68
  5. Step 5: Solve for x
    x = 38,369,606,105.68/221,205.40
  6. Step 6: Final answer
    x = 173,456.91

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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.