Home / 325,131.21-487,743.39-100,511.19

Finding the Fourth Proportional to 325,131.21, 487,743.39 and 100,511.19

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Solution

The fourth proportional to 325,131.21, 487,743.39 and 100,511.19 is: 150,781.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,131.21 : 487,743.39 = 100,511.19 : x
  2. Step 2: Convert to fraction form
    325,131.21/487,743.39 = 100,511.19/x
  3. Step 3: Cross multiply
    325,131.21x = 487,743.39 × 100,511.19
  4. Step 4: Simplify right side
    325,131.21x = 49,023,668,543.53
  5. Step 5: Solve for x
    x = 49,023,668,543.53/325,131.21
  6. Step 6: Final answer
    x = 150,781.18

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1.5x scale

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.