Home / 319,919.52-479,968.97-140,020.63

Finding the Fourth Proportional to 319,919.52, 479,968.97 and 140,020.63

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Solution

The fourth proportional to 319,919.52, 479,968.97 and 140,020.63 is: 210,070.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,919.52 : 479,968.97 = 140,020.63 : x
  2. Step 2: Convert to fraction form
    319,919.52/479,968.97 = 140,020.63/x
  3. Step 3: Cross multiply
    319,919.52x = 479,968.97 × 140,020.63
  4. Step 4: Simplify right side
    319,919.52x = 67,205,557,559.85
  5. Step 5: Solve for x
    x = 67,205,557,559.85/319,919.52
  6. Step 6: Final answer
    x = 210,070.20

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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.