Home / 479,121.60-718,682.40-163,531.20

Finding the Fourth Proportional to 479,121.60, 718,682.40 and 163,531.20

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Solution

The fourth proportional to 479,121.60, 718,682.40 and 163,531.20 is: 245,296.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,121.60 : 718,682.40 = 163,531.20 : x
  2. Step 2: Convert to fraction form
    479,121.60/718,682.40 = 163,531.20/x
  3. Step 3: Cross multiply
    479,121.60x = 718,682.40 × 163,531.20
  4. Step 4: Simplify right side
    479,121.60x = 117,526,995,290.88
  5. Step 5: Solve for x
    x = 117,526,995,290.88/479,121.60
  6. Step 6: Final answer
    x = 245,296.80

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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.