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Finding the Fourth Proportional to 664,273.60, 996,410.40 and 243,494.80

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Solution

The fourth proportional to 664,273.60, 996,410.40 and 243,494.80 is: 365,242.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,273.60 : 996,410.40 = 243,494.80 : x
  2. Step 2: Convert to fraction form
    664,273.60/996,410.40 = 243,494.80/x
  3. Step 3: Cross multiply
    664,273.60x = 996,410.40 × 243,494.80
  4. Step 4: Simplify right side
    664,273.60x = 242,620,751,065.92
  5. Step 5: Solve for x
    x = 242,620,751,065.92/664,273.60
  6. Step 6: Final answer
    x = 365,242.20

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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.