Home / 379,610.31-523,841.67-209,833.50

Finding the Fourth Proportional to 379,610.31, 523,841.67 and 209,833.50

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Solution

The fourth proportional to 379,610.31, 523,841.67 and 209,833.50 is: 289,558.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,610.31 : 523,841.67 = 209,833.50 : x
  2. Step 2: Convert to fraction form
    379,610.31/523,841.67 = 209,833.50/x
  3. Step 3: Cross multiply
    379,610.31x = 523,841.67 × 209,833.50
  4. Step 4: Simplify right side
    379,610.31x = 109,919,531,061.95
  5. Step 5: Solve for x
    x = 109,919,531,061.95/379,610.31
  6. Step 6: Final answer
    x = 289,558.87

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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.