Home / 208,313.28-312,516.32-114,770.88

Finding the Fourth Proportional to 208,313.28, 312,516.32 and 114,770.88

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Solution

The fourth proportional to 208,313.28, 312,516.32 and 114,770.88 is: 172,181.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,313.28 : 312,516.32 = 114,770.88 : x
  2. Step 2: Convert to fraction form
    208,313.28/312,516.32 = 114,770.88/x
  3. Step 3: Cross multiply
    208,313.28x = 312,516.32 × 114,770.88
  4. Step 4: Simplify right side
    208,313.28x = 35,867,773,060.76
  5. Step 5: Solve for x
    x = 35,867,773,060.76/208,313.28
  6. Step 6: Final answer
    x = 172,181.88

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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.