Home / 268,621.80-402,932.70-161,716.20

Finding the Fourth Proportional to 268,621.80, 402,932.70 and 161,716.20

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Solution

The fourth proportional to 268,621.80, 402,932.70 and 161,716.20 is: 242,574.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,621.80 : 402,932.70 = 161,716.20 : x
  2. Step 2: Convert to fraction form
    268,621.80/402,932.70 = 161,716.20/x
  3. Step 3: Cross multiply
    268,621.80x = 402,932.70 × 161,716.20
  4. Step 4: Simplify right side
    268,621.80x = 65,160,745,099.74
  5. Step 5: Solve for x
    x = 65,160,745,099.74/268,621.80
  6. Step 6: Final answer
    x = 242,574.30

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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.