Home / 219,387.40-302,784.68-126,251.22

Finding the Fourth Proportional to 219,387.40, 302,784.68 and 126,251.22

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Solution

The fourth proportional to 219,387.40, 302,784.68 and 126,251.22 is: 174,243.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,387.40 : 302,784.68 = 126,251.22 : x
  2. Step 2: Convert to fraction form
    219,387.40/302,784.68 = 126,251.22/x
  3. Step 3: Cross multiply
    219,387.40x = 302,784.68 × 126,251.22
  4. Step 4: Simplify right side
    219,387.40x = 38,226,933,733.39
  5. Step 5: Solve for x
    x = 38,226,933,733.39/219,387.40
  6. Step 6: Final answer
    x = 174,243.98

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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.