Home / 214,436.40-321,808.20-89,866.80

Finding the Fourth Proportional to 214,436.40, 321,808.20 and 89,866.80

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Solution

The fourth proportional to 214,436.40, 321,808.20 and 89,866.80 is: 134,864.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,436.40 : 321,808.20 = 89,866.80 : x
  2. Step 2: Convert to fraction form
    214,436.40/321,808.20 = 89,866.80/x
  3. Step 3: Cross multiply
    214,436.40x = 321,808.20 × 89,866.80
  4. Step 4: Simplify right side
    214,436.40x = 28,919,873,147.76
  5. Step 5: Solve for x
    x = 28,919,873,147.76/214,436.40
  6. Step 6: Final answer
    x = 134,864.57

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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.