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Finding the Fourth Proportional to 664,054.80, 995,952.60 and 220,822.80

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Solution

The fourth proportional to 664,054.80, 995,952.60 and 220,822.80 is: 331,191.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,054.80 : 995,952.60 = 220,822.80 : x
  2. Step 2: Convert to fraction form
    664,054.80/995,952.60 = 220,822.80/x
  3. Step 3: Cross multiply
    664,054.80x = 995,952.60 × 220,822.80
  4. Step 4: Simplify right side
    664,054.80x = 219,929,041,799.28
  5. Step 5: Solve for x
    x = 219,929,041,799.28/664,054.80
  6. Step 6: Final answer
    x = 331,191.10

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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.