Home / 414,015.20-621,022.74-133,532.45

Finding the Fourth Proportional to 414,015.20, 621,022.74 and 133,532.45

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Solution

The fourth proportional to 414,015.20, 621,022.74 and 133,532.45 is: 200,298.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,015.20 : 621,022.74 = 133,532.45 : x
  2. Step 2: Convert to fraction form
    414,015.20/621,022.74 = 133,532.45/x
  3. Step 3: Cross multiply
    414,015.20x = 621,022.74 × 133,532.45
  4. Step 4: Simplify right side
    414,015.20x = 82,926,684,872.80
  5. Step 5: Solve for x
    x = 82,926,684,872.80/414,015.20
  6. Step 6: Final answer
    x = 200,298.65

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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.