Home / 332,721.20-499,081.80-133,072.40

Finding the Fourth Proportional to 332,721.20, 499,081.80 and 133,072.40

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Solution

The fourth proportional to 332,721.20, 499,081.80 and 133,072.40 is: 199,608.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,721.20 : 499,081.80 = 133,072.40 : x
  2. Step 2: Convert to fraction form
    332,721.20/499,081.80 = 133,072.40/x
  3. Step 3: Cross multiply
    332,721.20x = 499,081.80 × 133,072.40
  4. Step 4: Simplify right side
    332,721.20x = 66,414,012,922.32
  5. Step 5: Solve for x
    x = 66,414,012,922.32/332,721.20
  6. Step 6: Final answer
    x = 199,608.60

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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.