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Finding the Fourth Proportional to 395,131.20, 590,947.20 and 332,145.60

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Solution

The fourth proportional to 395,131.20, 590,947.20 and 332,145.60 is: 496,747.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,131.20 : 590,947.20 = 332,145.60 : x
  2. Step 2: Convert to fraction form
    395,131.20/590,947.20 = 332,145.60/x
  3. Step 3: Cross multiply
    395,131.20x = 590,947.20 × 332,145.60
  4. Step 4: Simplify right side
    395,131.20x = 196,280,512,312.32
  5. Step 5: Solve for x
    x = 196,280,512,312.32/395,131.20
  6. Step 6: Final answer
    x = 496,747.69

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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.