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Finding the Fourth Proportional to 248,469.20, 372,703.80 and 219,438.80

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Solution

The fourth proportional to 248,469.20, 372,703.80 and 219,438.80 is: 329,158.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,469.20 : 372,703.80 = 219,438.80 : x
  2. Step 2: Convert to fraction form
    248,469.20/372,703.80 = 219,438.80/x
  3. Step 3: Cross multiply
    248,469.20x = 372,703.80 × 219,438.80
  4. Step 4: Simplify right side
    248,469.20x = 81,785,674,627.44
  5. Step 5: Solve for x
    x = 81,785,674,627.44/248,469.20
  6. Step 6: Final answer
    x = 329,158.20

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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.