Home / 217,929.66-300,780.24-127,296.12

Finding the Fourth Proportional to 217,929.66, 300,780.24 and 127,296.12

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Solution

The fourth proportional to 217,929.66, 300,780.24 and 127,296.12 is: 175,690.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,929.66 : 300,780.24 = 127,296.12 : x
  2. Step 2: Convert to fraction form
    217,929.66/300,780.24 = 127,296.12/x
  3. Step 3: Cross multiply
    217,929.66x = 300,780.24 × 127,296.12
  4. Step 4: Simplify right side
    217,929.66x = 38,288,157,524.67
  5. Step 5: Solve for x
    x = 38,288,157,524.67/217,929.66
  6. Step 6: Final answer
    x = 175,690.44

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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.