Home / 214,912.40-321,754.20-131,968.40

Finding the Fourth Proportional to 214,912.40, 321,754.20 and 131,968.40

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Solution

The fourth proportional to 214,912.40, 321,754.20 and 131,968.40 is: 197,575.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,912.40 : 321,754.20 = 131,968.40 : x
  2. Step 2: Convert to fraction form
    214,912.40/321,754.20 = 131,968.40/x
  3. Step 3: Cross multiply
    214,912.40x = 321,754.20 × 131,968.40
  4. Step 4: Simplify right side
    214,912.40x = 42,461,386,967.28
  5. Step 5: Solve for x
    x = 42,461,386,967.28/214,912.40
  6. Step 6: Final answer
    x = 197,575.32

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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.