Home / 352,987.20-529,772.40-163,738.80

Finding the Fourth Proportional to 352,987.20, 529,772.40 and 163,738.80

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Solution

The fourth proportional to 352,987.20, 529,772.40 and 163,738.80 is: 245,743.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,987.20 : 529,772.40 = 163,738.80 : x
  2. Step 2: Convert to fraction form
    352,987.20/529,772.40 = 163,738.80/x
  3. Step 3: Cross multiply
    352,987.20x = 529,772.40 × 163,738.80
  4. Step 4: Simplify right side
    352,987.20x = 86,744,297,049.12
  5. Step 5: Solve for x
    x = 86,744,297,049.12/352,987.20
  6. Step 6: Final answer
    x = 245,743.46

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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.