Home / 414,540.20-621,810.30-148,309.40

Finding the Fourth Proportional to 414,540.20, 621,810.30 and 148,309.40

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Solution

The fourth proportional to 414,540.20, 621,810.30 and 148,309.40 is: 222,464.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,540.20 : 621,810.30 = 148,309.40 : x
  2. Step 2: Convert to fraction form
    414,540.20/621,810.30 = 148,309.40/x
  3. Step 3: Cross multiply
    414,540.20x = 621,810.30 × 148,309.40
  4. Step 4: Simplify right side
    414,540.20x = 92,220,312,506.82
  5. Step 5: Solve for x
    x = 92,220,312,506.82/414,540.20
  6. Step 6: Final answer
    x = 222,464.10

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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.