Home / 231,078.57-319,597.20-207,196.53

Finding the Fourth Proportional to 231,078.57, 319,597.20 and 207,196.53

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Solution

The fourth proportional to 231,078.57, 319,597.20 and 207,196.53 is: 286,566.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,078.57 : 319,597.20 = 207,196.53 : x
  2. Step 2: Convert to fraction form
    231,078.57/319,597.20 = 207,196.53/x
  3. Step 3: Cross multiply
    231,078.57x = 319,597.20 × 207,196.53
  4. Step 4: Simplify right side
    231,078.57x = 66,219,430,837.72
  5. Step 5: Solve for x
    x = 66,219,430,837.72/231,078.57
  6. Step 6: Final answer
    x = 286,566.73

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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.