Home / 331,028.40-496,542.60-212,833.20

Finding the Fourth Proportional to 331,028.40, 496,542.60 and 212,833.20

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Solution

The fourth proportional to 331,028.40, 496,542.60 and 212,833.20 is: 319,249.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,028.40 : 496,542.60 = 212,833.20 : x
  2. Step 2: Convert to fraction form
    331,028.40/496,542.60 = 212,833.20/x
  3. Step 3: Cross multiply
    331,028.40x = 496,542.60 × 212,833.20
  4. Step 4: Simplify right side
    331,028.40x = 105,680,750,494.32
  5. Step 5: Solve for x
    x = 105,680,750,494.32/331,028.40
  6. Step 6: Final answer
    x = 319,249.80

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1.5x scale

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.