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Finding the Fourth Proportional to 247,879.44, 342,075.96 and 147,258

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Solution

The fourth proportional to 247,879.44, 342,075.96 and 147,258 is: 203,217.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,879.44 : 342,075.96 = 147,258 : x
  2. Step 2: Convert to fraction form
    247,879.44/342,075.96 = 147,258/x
  3. Step 3: Cross multiply
    247,879.44x = 342,075.96 × 147,258
  4. Step 4: Simplify right side
    247,879.44x = 50,373,421,717.68
  5. Step 5: Solve for x
    x = 50,373,421,717.68/247,879.44
  6. Step 6: Final answer
    x = 203,217.43

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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.