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Finding the Fourth Proportional to 308,226.60, 461,994.30 and 130,703.40

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Solution

The fourth proportional to 308,226.60, 461,994.30 and 130,703.40 is: 195,908.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,226.60 : 461,994.30 = 130,703.40 : x
  2. Step 2: Convert to fraction form
    308,226.60/461,994.30 = 130,703.40/x
  3. Step 3: Cross multiply
    308,226.60x = 461,994.30 × 130,703.40
  4. Step 4: Simplify right side
    308,226.60x = 60,384,225,790.62
  5. Step 5: Solve for x
    x = 60,384,225,790.62/308,226.60
  6. Step 6: Final answer
    x = 195,908.55

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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.