Home / 268,288.80-402,433.20-162,000.60

Finding the Fourth Proportional to 268,288.80, 402,433.20 and 162,000.60

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Solution

The fourth proportional to 268,288.80, 402,433.20 and 162,000.60 is: 243,000.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,288.80 : 402,433.20 = 162,000.60 : x
  2. Step 2: Convert to fraction form
    268,288.80/402,433.20 = 162,000.60/x
  3. Step 3: Cross multiply
    268,288.80x = 402,433.20 × 162,000.60
  4. Step 4: Simplify right side
    268,288.80x = 65,194,419,859.92
  5. Step 5: Solve for x
    x = 65,194,419,859.92/268,288.80
  6. Step 6: Final answer
    x = 243,000.90

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1.5x scale

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.