Home / 214,640.20-321,653.10-148,899.40

Finding the Fourth Proportional to 214,640.20, 321,653.10 and 148,899.40

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Solution

The fourth proportional to 214,640.20, 321,653.10 and 148,899.40 is: 223,135.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,640.20 : 321,653.10 = 148,899.40 : x
  2. Step 2: Convert to fraction form
    214,640.20/321,653.10 = 148,899.40/x
  3. Step 3: Cross multiply
    214,640.20x = 321,653.10 × 148,899.40
  4. Step 4: Simplify right side
    214,640.20x = 47,893,953,598.14
  5. Step 5: Solve for x
    x = 47,893,953,598.14/214,640.20
  6. Step 6: Final answer
    x = 223,135.99

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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.