Home / 221,217.34-305,305.85-125,738.39

Finding the Fourth Proportional to 221,217.34, 305,305.85 and 125,738.39

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Solution

The fourth proportional to 221,217.34, 305,305.85 and 125,738.39 is: 173,533.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,217.34 : 305,305.85 = 125,738.39 : x
  2. Step 2: Convert to fraction form
    221,217.34/305,305.85 = 125,738.39/x
  3. Step 3: Cross multiply
    221,217.34x = 305,305.85 × 125,738.39
  4. Step 4: Simplify right side
    221,217.34x = 38,388,666,036.58
  5. Step 5: Solve for x
    x = 38,388,666,036.58/221,217.34
  6. Step 6: Final answer
    x = 173,533.71

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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.