Home / 351,019.20-526,528.80-262,891.20

Finding the Fourth Proportional to 351,019.20, 526,528.80 and 262,891.20

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Solution

The fourth proportional to 351,019.20, 526,528.80 and 262,891.20 is: 394,336.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,019.20 : 526,528.80 = 262,891.20 : x
  2. Step 2: Convert to fraction form
    351,019.20/526,528.80 = 262,891.20/x
  3. Step 3: Cross multiply
    351,019.20x = 526,528.80 × 262,891.20
  4. Step 4: Simplify right side
    351,019.20x = 138,419,788,066.56
  5. Step 5: Solve for x
    x = 138,419,788,066.56/351,019.20
  6. Step 6: Final answer
    x = 394,336.80

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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.