Home / 220,420.36-330,446.22-102,176.60

Finding the Fourth Proportional to 220,420.36, 330,446.22 and 102,176.60

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Solution

The fourth proportional to 220,420.36, 330,446.22 and 102,176.60 is: 153,179.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,420.36 : 330,446.22 = 102,176.60 : x
  2. Step 2: Convert to fraction form
    220,420.36/330,446.22 = 102,176.60/x
  3. Step 3: Cross multiply
    220,420.36x = 330,446.22 × 102,176.60
  4. Step 4: Simplify right side
    220,420.36x = 33,763,871,242.45
  5. Step 5: Solve for x
    x = 33,763,871,242.45/220,420.36
  6. Step 6: Final answer
    x = 153,179.46

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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.