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Finding the Fourth Proportional to 664,533.80, 996,930.30 and 265,106.60

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Solution

The fourth proportional to 664,533.80, 996,930.30 and 265,106.60 is: 397,711.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,533.80 : 996,930.30 = 265,106.60 : x
  2. Step 2: Convert to fraction form
    664,533.80/996,930.30 = 265,106.60/x
  3. Step 3: Cross multiply
    664,533.80x = 996,930.30 × 265,106.60
  4. Step 4: Simplify right side
    664,533.80x = 264,292,802,269.98
  5. Step 5: Solve for x
    x = 264,292,802,269.98/664,533.80
  6. Step 6: Final answer
    x = 397,711.60

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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.