Home / 221,749.85-306,015.10-126,256.59

Finding the Fourth Proportional to 221,749.85, 306,015.10 and 126,256.59

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Solution

The fourth proportional to 221,749.85, 306,015.10 and 126,256.59 is: 174,234.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,749.85 : 306,015.10 = 126,256.59 : x
  2. Step 2: Convert to fraction form
    221,749.85/306,015.10 = 126,256.59/x
  3. Step 3: Cross multiply
    221,749.85x = 306,015.10 × 126,256.59
  4. Step 4: Simplify right side
    221,749.85x = 38,636,422,698.87
  5. Step 5: Solve for x
    x = 38,636,422,698.87/221,749.85
  6. Step 6: Final answer
    x = 174,234.27

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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.