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Finding the Fourth Proportional to 664,064.60, 995,967.30 and 214,676.60

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Solution

The fourth proportional to 664,064.60, 995,967.30 and 214,676.60 is: 321,973.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,064.60 : 995,967.30 = 214,676.60 : x
  2. Step 2: Convert to fraction form
    664,064.60/995,967.30 = 214,676.60/x
  3. Step 3: Cross multiply
    664,064.60x = 995,967.30 × 214,676.60
  4. Step 4: Simplify right side
    664,064.60x = 213,810,873,675.18
  5. Step 5: Solve for x
    x = 213,810,873,675.18/664,064.60
  6. Step 6: Final answer
    x = 321,973.00

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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.