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Finding the Fourth Proportional to 308,087.60, 462,066.60 and 130,600.40

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Solution

The fourth proportional to 308,087.60, 462,066.60 and 130,600.40 is: 195,873.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,087.60 : 462,066.60 = 130,600.40 : x
  2. Step 2: Convert to fraction form
    308,087.60/462,066.60 = 130,600.40/x
  3. Step 3: Cross multiply
    308,087.60x = 462,066.60 × 130,600.40
  4. Step 4: Simplify right side
    308,087.60x = 60,346,082,786.64
  5. Step 5: Solve for x
    x = 60,346,082,786.64/308,087.60
  6. Step 6: Final answer
    x = 195,873.13

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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.