Home / 319,869.50-441,420.17-205,147.79

Finding the Fourth Proportional to 319,869.50, 441,420.17 and 205,147.79

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Solution

The fourth proportional to 319,869.50, 441,420.17 and 205,147.79 is: 283,104.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,869.50 : 441,420.17 = 205,147.79 : x
  2. Step 2: Convert to fraction form
    319,869.50/441,420.17 = 205,147.79/x
  3. Step 3: Cross multiply
    319,869.50x = 441,420.17 × 205,147.79
  4. Step 4: Simplify right side
    319,869.50x = 90,556,374,338.00
  5. Step 5: Solve for x
    x = 90,556,374,338.00/319,869.50
  6. Step 6: Final answer
    x = 283,104.12

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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.