Home / 208,516.32-312,417.38-113,812.96

Finding the Fourth Proportional to 208,516.32, 312,417.38 and 113,812.96

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Solution

The fourth proportional to 208,516.32, 312,417.38 and 113,812.96 is: 170,524.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,516.32 : 312,417.38 = 113,812.96 : x
  2. Step 2: Convert to fraction form
    208,516.32/312,417.38 = 113,812.96/x
  3. Step 3: Cross multiply
    208,516.32x = 312,417.38 × 113,812.96
  4. Step 4: Simplify right side
    208,516.32x = 35,557,146,773.24
  5. Step 5: Solve for x
    x = 35,557,146,773.24/208,516.32
  6. Step 6: Final answer
    x = 170,524.53

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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.