Home / 219,784.21-329,663.56-84,821.88

Finding the Fourth Proportional to 219,784.21, 329,663.56 and 84,821.88

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Solution

The fourth proportional to 219,784.21, 329,663.56 and 84,821.88 is: 127,227.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,784.21 : 329,663.56 = 84,821.88 : x
  2. Step 2: Convert to fraction form
    219,784.21/329,663.56 = 84,821.88/x
  3. Step 3: Cross multiply
    219,784.21x = 329,663.56 × 84,821.88
  4. Step 4: Simplify right side
    219,784.21x = 27,962,682,926.69
  5. Step 5: Solve for x
    x = 27,962,682,926.69/219,784.21
  6. Step 6: Final answer
    x = 127,227.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.