Home / 414,165.11-621,313.41-133,616.75

Finding the Fourth Proportional to 414,165.11, 621,313.41 and 133,616.75

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Solution

The fourth proportional to 414,165.11, 621,313.41 and 133,616.75 is: 200,446.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,165.11 : 621,313.41 = 133,616.75 : x
  2. Step 2: Convert to fraction form
    414,165.11/621,313.41 = 133,616.75/x
  3. Step 3: Cross multiply
    414,165.11x = 621,313.41 × 133,616.75
  4. Step 4: Simplify right side
    414,165.11x = 83,017,878,575.62
  5. Step 5: Solve for x
    x = 83,017,878,575.62/414,165.11
  6. Step 6: Final answer
    x = 200,446.34

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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.