Home / 219,296.76-302,535.16-128,680.44

Finding the Fourth Proportional to 219,296.76, 302,535.16 and 128,680.44

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Solution

The fourth proportional to 219,296.76, 302,535.16 and 128,680.44 is: 177,523.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,296.76 : 302,535.16 = 128,680.44 : x
  2. Step 2: Convert to fraction form
    219,296.76/302,535.16 = 128,680.44/x
  3. Step 3: Cross multiply
    219,296.76x = 302,535.16 × 128,680.44
  4. Step 4: Simplify right side
    219,296.76x = 38,930,357,504.27
  5. Step 5: Solve for x
    x = 38,930,357,504.27/219,296.76
  6. Step 6: Final answer
    x = 177,523.63

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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.