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Finding the Fourth Proportional to 248,540.40, 372,810.60 and 143,272.80

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Solution

The fourth proportional to 248,540.40, 372,810.60 and 143,272.80 is: 214,909.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,540.40 : 372,810.60 = 143,272.80 : x
  2. Step 2: Convert to fraction form
    248,540.40/372,810.60 = 143,272.80/x
  3. Step 3: Cross multiply
    248,540.40x = 372,810.60 × 143,272.80
  4. Step 4: Simplify right side
    248,540.40x = 53,413,618,531.68
  5. Step 5: Solve for x
    x = 53,413,618,531.68/248,540.40
  6. Step 6: Final answer
    x = 214,909.20

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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.