Home / 281,731.78-422,597.67-170,690.50

Finding the Fourth Proportional to 281,731.78, 422,597.67 and 170,690.50

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Solution

The fourth proportional to 281,731.78, 422,597.67 and 170,690.50 is: 256,035.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,731.78 : 422,597.67 = 170,690.50 : x
  2. Step 2: Convert to fraction form
    281,731.78/422,597.67 = 170,690.50/x
  3. Step 3: Cross multiply
    281,731.78x = 422,597.67 × 170,690.50
  4. Step 4: Simplify right side
    281,731.78x = 72,133,407,591.14
  5. Step 5: Solve for x
    x = 72,133,407,591.14/281,731.78
  6. Step 6: Final answer
    x = 256,035.75

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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.