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Finding the Fourth Proportional to 202,358.26, 279,240.06 and 111,699.67

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Solution

The fourth proportional to 202,358.26, 279,240.06 and 111,699.67 is: 154,137.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,358.26 : 279,240.06 = 111,699.67 : x
  2. Step 2: Convert to fraction form
    202,358.26/279,240.06 = 111,699.67/x
  3. Step 3: Cross multiply
    202,358.26x = 279,240.06 × 111,699.67
  4. Step 4: Simplify right side
    202,358.26x = 31,191,022,552.78
  5. Step 5: Solve for x
    x = 31,191,022,552.78/202,358.26
  6. Step 6: Final answer
    x = 154,137.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.