Home / 414,541.20-621,811.80-148,310.40

Finding the Fourth Proportional to 414,541.20, 621,811.80 and 148,310.40

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Solution

The fourth proportional to 414,541.20, 621,811.80 and 148,310.40 is: 222,465.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,541.20 : 621,811.80 = 148,310.40 : x
  2. Step 2: Convert to fraction form
    414,541.20/621,811.80 = 148,310.40/x
  3. Step 3: Cross multiply
    414,541.20x = 621,811.80 × 148,310.40
  4. Step 4: Simplify right side
    414,541.20x = 92,221,156,782.72
  5. Step 5: Solve for x
    x = 92,221,156,782.72/414,541.20
  6. Step 6: Final answer
    x = 222,465.60

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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.