Home / 219,425.27-329,137.90-77,237.06

Finding the Fourth Proportional to 219,425.27, 329,137.90 and 77,237.06

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Solution

The fourth proportional to 219,425.27, 329,137.90 and 77,237.06 is: 115,855.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,425.27 : 329,137.90 = 77,237.06 : x
  2. Step 2: Convert to fraction form
    219,425.27/329,137.90 = 77,237.06/x
  3. Step 3: Cross multiply
    219,425.27x = 329,137.90 × 77,237.06
  4. Step 4: Simplify right side
    219,425.27x = 25,421,641,891.79
  5. Step 5: Solve for x
    x = 25,421,641,891.79/219,425.27
  6. Step 6: Final answer
    x = 115,855.58

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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.