Home / 219,118.54-329,255.76-117,991.36

Finding the Fourth Proportional to 219,118.54, 329,255.76 and 117,991.36

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Solution

The fourth proportional to 219,118.54, 329,255.76 and 117,991.36 is: 177,298.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,118.54 : 329,255.76 = 117,991.36 : x
  2. Step 2: Convert to fraction form
    219,118.54/329,255.76 = 117,991.36/x
  3. Step 3: Cross multiply
    219,118.54x = 329,255.76 × 117,991.36
  4. Step 4: Simplify right side
    219,118.54x = 38,849,334,506.39
  5. Step 5: Solve for x
    x = 38,849,334,506.39/219,118.54
  6. Step 6: Final answer
    x = 177,298.25

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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.