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Finding the Fourth Proportional to 207,903.64, 311,590.32 and 101,313.04

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Solution

The fourth proportional to 207,903.64, 311,590.32 and 101,313.04 is: 151,840.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,903.64 : 311,590.32 = 101,313.04 : x
  2. Step 2: Convert to fraction form
    207,903.64/311,590.32 = 101,313.04/x
  3. Step 3: Cross multiply
    207,903.64x = 311,590.32 × 101,313.04
  4. Step 4: Simplify right side
    207,903.64x = 31,568,162,553.77
  5. Step 5: Solve for x
    x = 31,568,162,553.77/207,903.64
  6. Step 6: Final answer
    x = 151,840.36

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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.