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Finding the Fourth Proportional to 248,630.70, 343,103.79 and 141,205.26

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Solution

The fourth proportional to 248,630.70, 343,103.79 and 141,205.26 is: 194,859.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,630.70 : 343,103.79 = 141,205.26 : x
  2. Step 2: Convert to fraction form
    248,630.70/343,103.79 = 141,205.26/x
  3. Step 3: Cross multiply
    248,630.70x = 343,103.79 × 141,205.26
  4. Step 4: Simplify right side
    248,630.70x = 48,448,059,873.94
  5. Step 5: Solve for x
    x = 48,448,059,873.94/248,630.70
  6. Step 6: Final answer
    x = 194,859.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.