Home / 408,722.21-613,086.75-142,482.23

Finding the Fourth Proportional to 408,722.21, 613,086.75 and 142,482.23

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Solution

The fourth proportional to 408,722.21, 613,086.75 and 142,482.23 is: 213,724.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,722.21 : 613,086.75 = 142,482.23 : x
  2. Step 2: Convert to fraction form
    408,722.21/613,086.75 = 142,482.23/x
  3. Step 3: Cross multiply
    408,722.21x = 613,086.75 × 142,482.23
  4. Step 4: Simplify right side
    408,722.21x = 87,353,964,258.02
  5. Step 5: Solve for x
    x = 87,353,964,258.02/408,722.21
  6. Step 6: Final answer
    x = 213,724.54

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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.