Home / 214,405.25-321,530.85-72,220.21

Finding the Fourth Proportional to 214,405.25, 321,530.85 and 72,220.21

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Solution

The fourth proportional to 214,405.25, 321,530.85 and 72,220.21 is: 108,304.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,405.25 : 321,530.85 = 72,220.21 : x
  2. Step 2: Convert to fraction form
    214,405.25/321,530.85 = 72,220.21/x
  3. Step 3: Cross multiply
    214,405.25x = 321,530.85 × 72,220.21
  4. Step 4: Simplify right side
    214,405.25x = 23,221,024,704.65
  5. Step 5: Solve for x
    x = 23,221,024,704.65/214,405.25
  6. Step 6: Final answer
    x = 108,304.37

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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.