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Finding the Fourth Proportional to 308,793.60, 463,190.40 and 288,057.60

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Solution

The fourth proportional to 308,793.60, 463,190.40 and 288,057.60 is: 432,086.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,793.60 : 463,190.40 = 288,057.60 : x
  2. Step 2: Convert to fraction form
    308,793.60/463,190.40 = 288,057.60/x
  3. Step 3: Cross multiply
    308,793.60x = 463,190.40 × 288,057.60
  4. Step 4: Simplify right side
    308,793.60x = 133,425,514,967.04
  5. Step 5: Solve for x
    x = 133,425,514,967.04/308,793.60
  6. Step 6: Final answer
    x = 432,086.40

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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.