Home / 217,986.12-300,710.88-189,266.76

Finding the Fourth Proportional to 217,986.12, 300,710.88 and 189,266.76

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Solution

The fourth proportional to 217,986.12, 300,710.88 and 189,266.76 is: 261,092.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,986.12 : 300,710.88 = 189,266.76 : x
  2. Step 2: Convert to fraction form
    217,986.12/300,710.88 = 189,266.76/x
  3. Step 3: Cross multiply
    217,986.12x = 300,710.88 × 189,266.76
  4. Step 4: Simplify right side
    217,986.12x = 56,914,573,954.35
  5. Step 5: Solve for x
    x = 56,914,573,954.35/217,986.12
  6. Step 6: Final answer
    x = 261,092.65

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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.