Home / 385,747.41-532,340.07-220,172.09

Finding the Fourth Proportional to 385,747.41, 532,340.07 and 220,172.09

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Solution

The fourth proportional to 385,747.41, 532,340.07 and 220,172.09 is: 303,842.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,747.41 : 532,340.07 = 220,172.09 : x
  2. Step 2: Convert to fraction form
    385,747.41/532,340.07 = 220,172.09/x
  3. Step 3: Cross multiply
    385,747.41x = 532,340.07 × 220,172.09
  4. Step 4: Simplify right side
    385,747.41x = 117,206,425,309.71
  5. Step 5: Solve for x
    x = 117,206,425,309.71/385,747.41
  6. Step 6: Final answer
    x = 303,842.41

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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.