Home / 221,750.85-306,016.48-126,257.59

Finding the Fourth Proportional to 221,750.85, 306,016.48 and 126,257.59

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Solution

The fourth proportional to 221,750.85, 306,016.48 and 126,257.59 is: 174,235.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,750.85 : 306,016.48 = 126,257.59 : x
  2. Step 2: Convert to fraction form
    221,750.85/306,016.48 = 126,257.59/x
  3. Step 3: Cross multiply
    221,750.85x = 306,016.48 × 126,257.59
  4. Step 4: Simplify right side
    221,750.85x = 38,636,903,265.08
  5. Step 5: Solve for x
    x = 38,636,903,265.08/221,750.85
  6. Step 6: Final answer
    x = 174,235.65

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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.