Home / 253,003.20-379,197.60-112,612.80

Finding the Fourth Proportional to 253,003.20, 379,197.60 and 112,612.80

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Solution

The fourth proportional to 253,003.20, 379,197.60 and 112,612.80 is: 168,782.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,003.20 : 379,197.60 = 112,612.80 : x
  2. Step 2: Convert to fraction form
    253,003.20/379,197.60 = 112,612.80/x
  3. Step 3: Cross multiply
    253,003.20x = 379,197.60 × 112,612.80
  4. Step 4: Simplify right side
    253,003.20x = 42,702,503,489.28
  5. Step 5: Solve for x
    x = 42,702,503,489.28/253,003.20
  6. Step 6: Final answer
    x = 168,782.46

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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.