Home / 268,480.20-402,692.56-90,982.60

Finding the Fourth Proportional to 268,480.20, 402,692.56 and 90,982.60

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Solution

The fourth proportional to 268,480.20, 402,692.56 and 90,982.60 is: 136,464.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,480.20 : 402,692.56 = 90,982.60 : x
  2. Step 2: Convert to fraction form
    268,480.20/402,692.56 = 90,982.60/x
  3. Step 3: Cross multiply
    268,480.20x = 402,692.56 × 90,982.60
  4. Step 4: Simplify right side
    268,480.20x = 36,638,016,109.46
  5. Step 5: Solve for x
    x = 36,638,016,109.46/268,480.20
  6. Step 6: Final answer
    x = 136,464.50

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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.