Home / 414,209.79-621,445.18-147,964.41

Finding the Fourth Proportional to 414,209.79, 621,445.18 and 147,964.41

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Solution

The fourth proportional to 414,209.79, 621,445.18 and 147,964.41 is: 221,993.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,209.79 : 621,445.18 = 147,964.41 : x
  2. Step 2: Convert to fraction form
    414,209.79/621,445.18 = 147,964.41/x
  3. Step 3: Cross multiply
    414,209.79x = 621,445.18 × 147,964.41
  4. Step 4: Simplify right side
    414,209.79x = 91,951,766,298.82
  5. Step 5: Solve for x
    x = 91,951,766,298.82/414,209.79
  6. Step 6: Final answer
    x = 221,993.23

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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.