Home / 443,943.09-666,013.25-207,156.60

Finding the Fourth Proportional to 443,943.09, 666,013.25 and 207,156.60

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Solution

The fourth proportional to 443,943.09, 666,013.25 and 207,156.60 is: 310,780.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,943.09 : 666,013.25 = 207,156.60 : x
  2. Step 2: Convert to fraction form
    443,943.09/666,013.25 = 207,156.60/x
  3. Step 3: Cross multiply
    443,943.09x = 666,013.25 × 207,156.60
  4. Step 4: Simplify right side
    443,943.09x = 137,969,040,942.84
  5. Step 5: Solve for x
    x = 137,969,040,942.84/443,943.09
  6. Step 6: Final answer
    x = 310,780.92

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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.