Home / 221,774.22-306,051.35-126,281.30

Finding the Fourth Proportional to 221,774.22, 306,051.35 and 126,281.30

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Solution

The fourth proportional to 221,774.22, 306,051.35 and 126,281.30 is: 174,269.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,774.22 : 306,051.35 = 126,281.30 : x
  2. Step 2: Convert to fraction form
    221,774.22/306,051.35 = 126,281.30/x
  3. Step 3: Cross multiply
    221,774.22x = 306,051.35 × 126,281.30
  4. Step 4: Simplify right side
    221,774.22x = 38,648,560,183.09
  5. Step 5: Solve for x
    x = 38,648,560,183.09/221,774.22
  6. Step 6: Final answer
    x = 174,269.85

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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.