Home / 515,228.20-772,694.61-173,634.43

Finding the Fourth Proportional to 515,228.20, 772,694.61 and 173,634.43

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Solution

The fourth proportional to 515,228.20, 772,694.61 and 173,634.43 is: 260,401.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,228.20 : 772,694.61 = 173,634.43 : x
  2. Step 2: Convert to fraction form
    515,228.20/772,694.61 = 173,634.43/x
  3. Step 3: Cross multiply
    515,228.20x = 772,694.61 × 173,634.43
  4. Step 4: Simplify right side
    515,228.20x = 134,166,388,171.42
  5. Step 5: Solve for x
    x = 134,166,388,171.42/515,228.20
  6. Step 6: Final answer
    x = 260,401.87

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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.