Home / 219,664.07-329,522.08-77,479.69

Finding the Fourth Proportional to 219,664.07, 329,522.08 and 77,479.69

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Solution

The fourth proportional to 219,664.07, 329,522.08 and 77,479.69 is: 116,228.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,664.07 : 329,522.08 = 77,479.69 : x
  2. Step 2: Convert to fraction form
    219,664.07/329,522.08 = 77,479.69/x
  3. Step 3: Cross multiply
    219,664.07x = 329,522.08 × 77,479.69
  4. Step 4: Simplify right side
    219,664.07x = 25,531,266,571.55
  5. Step 5: Solve for x
    x = 25,531,266,571.55/219,664.07
  6. Step 6: Final answer
    x = 116,228.69

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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.