Home / 515,226.20-772,841.28-215,496.53

Finding the Fourth Proportional to 515,226.20, 772,841.28 and 215,496.53

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Solution

The fourth proportional to 515,226.20, 772,841.28 and 215,496.53 is: 323,245.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,226.20 : 772,841.28 = 215,496.53 : x
  2. Step 2: Convert to fraction form
    515,226.20/772,841.28 = 215,496.53/x
  3. Step 3: Cross multiply
    515,226.20x = 772,841.28 × 215,496.53
  4. Step 4: Simplify right side
    515,226.20x = 166,544,611,294.64
  5. Step 5: Solve for x
    x = 166,544,611,294.64/515,226.20
  6. Step 6: Final answer
    x = 323,245.61

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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.