Home / 319,629.21-479,318.52-119,840.68

Finding the Fourth Proportional to 319,629.21, 479,318.52 and 119,840.68

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Solution

The fourth proportional to 319,629.21, 479,318.52 and 119,840.68 is: 179,714.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,629.21 : 479,318.52 = 119,840.68 : x
  2. Step 2: Convert to fraction form
    319,629.21/479,318.52 = 119,840.68/x
  3. Step 3: Cross multiply
    319,629.21x = 479,318.52 × 119,840.68
  4. Step 4: Simplify right side
    319,629.21x = 57,441,857,373.39
  5. Step 5: Solve for x
    x = 57,441,857,373.39/319,629.21
  6. Step 6: Final answer
    x = 179,714.04

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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.