Home / 414,058.06-621,218.32-147,812.68

Finding the Fourth Proportional to 414,058.06, 621,218.32 and 147,812.68

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Solution

The fourth proportional to 414,058.06, 621,218.32 and 147,812.68 is: 221,765.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,058.06 : 621,218.32 = 147,812.68 : x
  2. Step 2: Convert to fraction form
    414,058.06/621,218.32 = 147,812.68/x
  3. Step 3: Cross multiply
    414,058.06x = 621,218.32 × 147,812.68
  4. Step 4: Simplify right side
    414,058.06x = 91,823,944,744.30
  5. Step 5: Solve for x
    x = 91,823,944,744.30/414,058.06
  6. Step 6: Final answer
    x = 221,765.87

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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.