Home / 214,290.90-321,465.78-72,147.24

Finding the Fourth Proportional to 214,290.90, 321,465.78 and 72,147.24

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Solution

The fourth proportional to 214,290.90, 321,465.78 and 72,147.24 is: 108,230.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,290.90 : 321,465.78 = 72,147.24 : x
  2. Step 2: Convert to fraction form
    214,290.90/321,465.78 = 72,147.24/x
  3. Step 3: Cross multiply
    214,290.90x = 321,465.78 × 72,147.24
  4. Step 4: Simplify right side
    214,290.90x = 23,192,868,781.45
  5. Step 5: Solve for x
    x = 23,192,868,781.45/214,290.90
  6. Step 6: Final answer
    x = 108,230.77

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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.