Home / 208,680.96-312,321.60-171,239.52

Finding the Fourth Proportional to 208,680.96, 312,321.60 and 171,239.52

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Solution

The fourth proportional to 208,680.96, 312,321.60 and 171,239.52 is: 256,285.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,680.96 : 312,321.60 = 171,239.52 : x
  2. Step 2: Convert to fraction form
    208,680.96/312,321.60 = 171,239.52/x
  3. Step 3: Cross multiply
    208,680.96x = 312,321.60 × 171,239.52
  4. Step 4: Simplify right side
    208,680.96x = 53,481,800,869.63
  5. Step 5: Solve for x
    x = 53,481,800,869.63/208,680.96
  6. Step 6: Final answer
    x = 256,285.00

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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.