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Finding the Fourth Proportional to 308,679.60, 463,019.40 and 108,998.40

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Solution

The fourth proportional to 308,679.60, 463,019.40 and 108,998.40 is: 163,497.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,679.60 : 463,019.40 = 108,998.40 : x
  2. Step 2: Convert to fraction form
    308,679.60/463,019.40 = 108,998.40/x
  3. Step 3: Cross multiply
    308,679.60x = 463,019.40 × 108,998.40
  4. Step 4: Simplify right side
    308,679.60x = 50,468,373,768.96
  5. Step 5: Solve for x
    x = 50,468,373,768.96/308,679.60
  6. Step 6: Final answer
    x = 163,497.60

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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.