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Finding the Fourth Proportional to 663,482.96, 995,194.20 and 214,224.56

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Solution

The fourth proportional to 663,482.96, 995,194.20 and 214,224.56 is: 321,327.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,482.96 : 995,194.20 = 214,224.56 : x
  2. Step 2: Convert to fraction form
    663,482.96/995,194.20 = 214,224.56/x
  3. Step 3: Cross multiply
    663,482.96x = 995,194.20 × 214,224.56
  4. Step 4: Simplify right side
    663,482.96x = 213,195,039,609.55
  5. Step 5: Solve for x
    x = 213,195,039,609.55/663,482.96
  6. Step 6: Final answer
    x = 321,327.08

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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.