Home / 221,842.35-306,196.83-126,405.30

Finding the Fourth Proportional to 221,842.35, 306,196.83 and 126,405.30

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Solution

The fourth proportional to 221,842.35, 306,196.83 and 126,405.30 is: 174,470.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,842.35 : 306,196.83 = 126,405.30 : x
  2. Step 2: Convert to fraction form
    221,842.35/306,196.83 = 126,405.30/x
  3. Step 3: Cross multiply
    221,842.35x = 306,196.83 × 126,405.30
  4. Step 4: Simplify right side
    221,842.35x = 38,704,902,155.20
  5. Step 5: Solve for x
    x = 38,704,902,155.20/221,842.35
  6. Step 6: Final answer
    x = 174,470.30

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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.