Home / 319,788.16-479,932.80-223,096.54

Finding the Fourth Proportional to 319,788.16, 479,932.80 and 223,096.54

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Solution

The fourth proportional to 319,788.16, 479,932.80 and 223,096.54 is: 334,819.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,788.16 : 479,932.80 = 223,096.54 : x
  2. Step 2: Convert to fraction form
    319,788.16/479,932.80 = 223,096.54/x
  3. Step 3: Cross multiply
    319,788.16x = 479,932.80 × 223,096.54
  4. Step 4: Simplify right side
    319,788.16x = 107,071,347,112.51
  5. Step 5: Solve for x
    x = 107,071,347,112.51/319,788.16
  6. Step 6: Final answer
    x = 334,819.61

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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.