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Finding the Fourth Proportional to 219,785.67, 329,728.23 and 70,034.49

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Solution

The fourth proportional to 219,785.67, 329,728.23 and 70,034.49 is: 105,067.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,785.67 : 329,728.23 = 70,034.49 : x
  2. Step 2: Convert to fraction form
    219,785.67/329,728.23 = 70,034.49/x
  3. Step 3: Cross multiply
    219,785.67x = 329,728.23 × 70,034.49
  4. Step 4: Simplify right side
    219,785.67x = 23,092,348,426.65
  5. Step 5: Solve for x
    x = 23,092,348,426.65/219,785.67
  6. Step 6: Final answer
    x = 105,067.58

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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.