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Finding the Fourth Proportional to 308,893.20, 462,562.20 and 203,139.60

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Solution

The fourth proportional to 308,893.20, 462,562.20 and 203,139.60 is: 304,198.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,893.20 : 462,562.20 = 203,139.60 : x
  2. Step 2: Convert to fraction form
    308,893.20/462,562.20 = 203,139.60/x
  3. Step 3: Cross multiply
    308,893.20x = 462,562.20 × 203,139.60
  4. Step 4: Simplify right side
    308,893.20x = 93,964,700,283.12
  5. Step 5: Solve for x
    x = 93,964,700,283.12/308,893.20
  6. Step 6: Final answer
    x = 304,198.02

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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.