Home / 219,557.28-329,776.80-130,983.60

Finding the Fourth Proportional to 219,557.28, 329,776.80 and 130,983.60

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Solution

The fourth proportional to 219,557.28, 329,776.80 and 130,983.60 is: 196,738.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,557.28 : 329,776.80 = 130,983.60 : x
  2. Step 2: Convert to fraction form
    219,557.28/329,776.80 = 130,983.60/x
  3. Step 3: Cross multiply
    219,557.28x = 329,776.80 × 130,983.60
  4. Step 4: Simplify right side
    219,557.28x = 43,195,352,460.48
  5. Step 5: Solve for x
    x = 43,195,352,460.48/219,557.28
  6. Step 6: Final answer
    x = 196,738.42

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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.