Home / 214,434.40-321,651.60-89,864.80

Finding the Fourth Proportional to 214,434.40, 321,651.60 and 89,864.80

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Solution

The fourth proportional to 214,434.40, 321,651.60 and 89,864.80 is: 134,797.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,434.40 : 321,651.60 = 89,864.80 : x
  2. Step 2: Convert to fraction form
    214,434.40/321,651.60 = 89,864.80/x
  3. Step 3: Cross multiply
    214,434.40x = 321,651.60 × 89,864.80
  4. Step 4: Simplify right side
    214,434.40x = 28,905,156,703.68
  5. Step 5: Solve for x
    x = 28,905,156,703.68/214,434.40
  6. Step 6: Final answer
    x = 134,797.20

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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.