Home / 219,785.47-329,436.01-143,792.69

Finding the Fourth Proportional to 219,785.47, 329,436.01 and 143,792.69

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Solution

The fourth proportional to 219,785.47, 329,436.01 and 143,792.69 is: 215,530.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,785.47 : 329,436.01 = 143,792.69 : x
  2. Step 2: Convert to fraction form
    219,785.47/329,436.01 = 143,792.69/x
  3. Step 3: Cross multiply
    219,785.47x = 329,436.01 × 143,792.69
  4. Step 4: Simplify right side
    219,785.47x = 47,370,488,593.33
  5. Step 5: Solve for x
    x = 47,370,488,593.33/219,785.47
  6. Step 6: Final answer
    x = 215,530.58

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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.