Home / 219,429.29-329,114.76-86,273.79

Finding the Fourth Proportional to 219,429.29, 329,114.76 and 86,273.79

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Solution

The fourth proportional to 219,429.29, 329,114.76 and 86,273.79 is: 129,399.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,429.29 : 329,114.76 = 86,273.79 : x
  2. Step 2: Convert to fraction form
    219,429.29/329,114.76 = 86,273.79/x
  3. Step 3: Cross multiply
    219,429.29x = 329,114.76 × 86,273.79
  4. Step 4: Simplify right side
    219,429.29x = 28,393,977,690.14
  5. Step 5: Solve for x
    x = 28,393,977,690.14/219,429.29
  6. Step 6: Final answer
    x = 129,399.22

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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.