Home / 231,289.49-319,191.69-140,630.44

Finding the Fourth Proportional to 231,289.49, 319,191.69 and 140,630.44

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Solution

The fourth proportional to 231,289.49, 319,191.69 and 140,630.44 is: 194,077.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,289.49 : 319,191.69 = 140,630.44 : x
  2. Step 2: Convert to fraction form
    231,289.49/319,191.69 = 140,630.44/x
  3. Step 3: Cross multiply
    231,289.49x = 319,191.69 × 140,630.44
  4. Step 4: Simplify right side
    231,289.49x = 44,888,067,809.04
  5. Step 5: Solve for x
    x = 44,888,067,809.04/231,289.49
  6. Step 6: Final answer
    x = 194,077.42

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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.