Home / 219,494.32-329,015.49-86,320.60

Finding the Fourth Proportional to 219,494.32, 329,015.49 and 86,320.60

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Solution

The fourth proportional to 219,494.32, 329,015.49 and 86,320.60 is: 129,392.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,494.32 : 329,015.49 = 86,320.60 : x
  2. Step 2: Convert to fraction form
    219,494.32/329,015.49 = 86,320.60/x
  3. Step 3: Cross multiply
    219,494.32x = 329,015.49 × 86,320.60
  4. Step 4: Simplify right side
    219,494.32x = 28,400,814,506.09
  5. Step 5: Solve for x
    x = 28,400,814,506.09/219,494.32
  6. Step 6: Final answer
    x = 129,392.02

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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.