Home / 643,172.20-964,067.10-243,658.60

Finding the Fourth Proportional to 643,172.20, 964,067.10 and 243,658.60

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Solution

The fourth proportional to 643,172.20, 964,067.10 and 243,658.60 is: 365,226.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,172.20 : 964,067.10 = 243,658.60 : x
  2. Step 2: Convert to fraction form
    643,172.20/964,067.10 = 243,658.60/x
  3. Step 3: Cross multiply
    643,172.20x = 964,067.10 × 243,658.60
  4. Step 4: Simplify right side
    643,172.20x = 234,903,239,892.06
  5. Step 5: Solve for x
    x = 234,903,239,892.06/643,172.20
  6. Step 6: Final answer
    x = 365,226.05

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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.