Home / 219,839.28-329,785.32-77,655.36

Finding the Fourth Proportional to 219,839.28, 329,785.32 and 77,655.36

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Solution

The fourth proportional to 219,839.28, 329,785.32 and 77,655.36 is: 116,492.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,839.28 : 329,785.32 = 77,655.36 : x
  2. Step 2: Convert to fraction form
    219,839.28/329,785.32 = 77,655.36/x
  3. Step 3: Cross multiply
    219,839.28x = 329,785.32 × 77,655.36
  4. Step 4: Simplify right side
    219,839.28x = 25,609,597,747.32
  5. Step 5: Solve for x
    x = 25,609,597,747.32/219,839.28
  6. Step 6: Final answer
    x = 116,492.37

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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.