Home / 317,817.63-438,481.26-179,977.71

Finding the Fourth Proportional to 317,817.63, 438,481.26 and 179,977.71

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Solution

The fourth proportional to 317,817.63, 438,481.26 and 179,977.71 is: 248,308.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,817.63 : 438,481.26 = 179,977.71 : x
  2. Step 2: Convert to fraction form
    317,817.63/438,481.26 = 179,977.71/x
  3. Step 3: Cross multiply
    317,817.63x = 438,481.26 × 179,977.71
  4. Step 4: Simplify right side
    317,817.63x = 78,916,853,052.71
  5. Step 5: Solve for x
    x = 78,916,853,052.71/317,817.63
  6. Step 6: Final answer
    x = 248,308.61

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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.