Home / 414,055.20-621,214.04-147,810

Finding the Fourth Proportional to 414,055.20, 621,214.04 and 147,810

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Solution

The fourth proportional to 414,055.20, 621,214.04 and 147,810 is: 221,761.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,055.20 : 621,214.04 = 147,810 : x
  2. Step 2: Convert to fraction form
    414,055.20/621,214.04 = 147,810/x
  3. Step 3: Cross multiply
    414,055.20x = 621,214.04 × 147,810
  4. Step 4: Simplify right side
    414,055.20x = 91,821,647,252.40
  5. Step 5: Solve for x
    x = 91,821,647,252.40/414,055.20
  6. Step 6: Final answer
    x = 221,761.85

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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.