Home / 319,622.52-479,433.78-109,262.28

Finding the Fourth Proportional to 319,622.52, 479,433.78 and 109,262.28

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Solution

The fourth proportional to 319,622.52, 479,433.78 and 109,262.28 is: 163,893.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,622.52 : 479,433.78 = 109,262.28 : x
  2. Step 2: Convert to fraction form
    319,622.52/479,433.78 = 109,262.28/x
  3. Step 3: Cross multiply
    319,622.52x = 479,433.78 × 109,262.28
  4. Step 4: Simplify right side
    319,622.52x = 52,384,027,911.82
  5. Step 5: Solve for x
    x = 52,384,027,911.82/319,622.52
  6. Step 6: Final answer
    x = 163,893.42

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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.