Home / 274,665.21-379,006.67-153,789.69

Finding the Fourth Proportional to 274,665.21, 379,006.67 and 153,789.69

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Solution

The fourth proportional to 274,665.21, 379,006.67 and 153,789.69 is: 212,212.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,665.21 : 379,006.67 = 153,789.69 : x
  2. Step 2: Convert to fraction form
    274,665.21/379,006.67 = 153,789.69/x
  3. Step 3: Cross multiply
    274,665.21x = 379,006.67 × 153,789.69
  4. Step 4: Simplify right side
    274,665.21x = 58,287,317,518.28
  5. Step 5: Solve for x
    x = 58,287,317,518.28/274,665.21
  6. Step 6: Final answer
    x = 212,212.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.