Home / 214,490.80-321,774.60-89,844.40

Finding the Fourth Proportional to 214,490.80, 321,774.60 and 89,844.40

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Solution

The fourth proportional to 214,490.80, 321,774.60 and 89,844.40 is: 134,782.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,490.80 : 321,774.60 = 89,844.40 : x
  2. Step 2: Convert to fraction form
    214,490.80/321,774.60 = 89,844.40/x
  3. Step 3: Cross multiply
    214,490.80x = 321,774.60 × 89,844.40
  4. Step 4: Simplify right side
    214,490.80x = 28,909,645,872.24
  5. Step 5: Solve for x
    x = 28,909,645,872.24/214,490.80
  6. Step 6: Final answer
    x = 134,782.68

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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.