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Finding the Fourth Proportional to 663,312.60, 995,164.11 and 214,025.04

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Solution

The fourth proportional to 663,312.60, 995,164.11 and 214,025.04 is: 321,100.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,312.60 : 995,164.11 = 214,025.04 : x
  2. Step 2: Convert to fraction form
    663,312.60/995,164.11 = 214,025.04/x
  3. Step 3: Cross multiply
    663,312.60x = 995,164.11 × 214,025.04
  4. Step 4: Simplify right side
    663,312.60x = 212,990,038,449.31
  5. Step 5: Solve for x
    x = 212,990,038,449.31/663,312.60
  6. Step 6: Final answer
    x = 321,100.55

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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.