Home / 330,845.80-496,268.70-212,747.80

Finding the Fourth Proportional to 330,845.80, 496,268.70 and 212,747.80

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Solution

The fourth proportional to 330,845.80, 496,268.70 and 212,747.80 is: 319,121.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,845.80 : 496,268.70 = 212,747.80 : x
  2. Step 2: Convert to fraction form
    330,845.80/496,268.70 = 212,747.80/x
  3. Step 3: Cross multiply
    330,845.80x = 496,268.70 × 212,747.80
  4. Step 4: Simplify right side
    330,845.80x = 105,580,074,133.86
  5. Step 5: Solve for x
    x = 105,580,074,133.86/330,845.80
  6. Step 6: Final answer
    x = 319,121.70

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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.