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Finding the Fourth Proportional to 319,714.58, 479,251.11 and 109,208.54

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Solution

The fourth proportional to 319,714.58, 479,251.11 and 109,208.54 is: 163,703.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,714.58 : 479,251.11 = 109,208.54 : x
  2. Step 2: Convert to fraction form
    319,714.58/479,251.11 = 109,208.54/x
  3. Step 3: Cross multiply
    319,714.58x = 479,251.11 × 109,208.54
  4. Step 4: Simplify right side
    319,714.58x = 52,338,314,016.48
  5. Step 5: Solve for x
    x = 52,338,314,016.48/319,714.58
  6. Step 6: Final answer
    x = 163,703.24

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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.