Home / 219,349.50-329,045.91-91,239.49

Finding the Fourth Proportional to 219,349.50, 329,045.91 and 91,239.49

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Solution

The fourth proportional to 219,349.50, 329,045.91 and 91,239.49 is: 136,868.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,349.50 : 329,045.91 = 91,239.49 : x
  2. Step 2: Convert to fraction form
    219,349.50/329,045.91 = 91,239.49/x
  3. Step 3: Cross multiply
    219,349.50x = 329,045.91 × 91,239.49
  4. Step 4: Simplify right side
    219,349.50x = 30,021,981,014.99
  5. Step 5: Solve for x
    x = 30,021,981,014.99/219,349.50
  6. Step 6: Final answer
    x = 136,868.24

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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.