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Finding the Fourth Proportional to 308,002.80, 462,004.20 and 252,015.60

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Solution

The fourth proportional to 308,002.80, 462,004.20 and 252,015.60 is: 378,023.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,002.80 : 462,004.20 = 252,015.60 : x
  2. Step 2: Convert to fraction form
    308,002.80/462,004.20 = 252,015.60/x
  3. Step 3: Cross multiply
    308,002.80x = 462,004.20 × 252,015.60
  4. Step 4: Simplify right side
    308,002.80x = 116,432,265,665.52
  5. Step 5: Solve for x
    x = 116,432,265,665.52/308,002.80
  6. Step 6: Final answer
    x = 378,023.40

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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.