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Finding the Fourth Proportional to 265,093.80, 397,640.70 and 202,108.20

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Solution

The fourth proportional to 265,093.80, 397,640.70 and 202,108.20 is: 303,162.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,093.80 : 397,640.70 = 202,108.20 : x
  2. Step 2: Convert to fraction form
    265,093.80/397,640.70 = 202,108.20/x
  3. Step 3: Cross multiply
    265,093.80x = 397,640.70 × 202,108.20
  4. Step 4: Simplify right side
    265,093.80x = 80,366,446,123.74
  5. Step 5: Solve for x
    x = 80,366,446,123.74/265,093.80
  6. Step 6: Final answer
    x = 303,162.30

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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.