Home / 385,161.03-577,989.41-207,790.47

Finding the Fourth Proportional to 385,161.03, 577,989.41 and 207,790.47

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Solution

The fourth proportional to 385,161.03, 577,989.41 and 207,790.47 is: 311,819.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,161.03 : 577,989.41 = 207,790.47 : x
  2. Step 2: Convert to fraction form
    385,161.03/577,989.41 = 207,790.47/x
  3. Step 3: Cross multiply
    385,161.03x = 577,989.41 × 207,790.47
  4. Step 4: Simplify right side
    385,161.03x = 120,100,690,119.97
  5. Step 5: Solve for x
    x = 120,100,690,119.97/385,161.03
  6. Step 6: Final answer
    x = 311,819.42

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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.