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Finding the Fourth Proportional to 203,060, 280,183.92 and 131,430.08

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Solution

The fourth proportional to 203,060, 280,183.92 and 131,430.08 is: 181,348.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,060 : 280,183.92 = 131,430.08 : x
  2. Step 2: Convert to fraction form
    203,060/280,183.92 = 131,430.08/x
  3. Step 3: Cross multiply
    203,060x = 280,183.92 × 131,430.08
  4. Step 4: Simplify right side
    203,060x = 36,824,595,020.31
  5. Step 5: Solve for x
    x = 36,824,595,020.31/203,060
  6. Step 6: Final answer
    x = 181,348.35

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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.