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Finding the Fourth Proportional to 217,408.98, 300,027.48 and 131,356.02

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Solution

The fourth proportional to 217,408.98, 300,027.48 and 131,356.02 is: 181,273.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,408.98 : 300,027.48 = 131,356.02 : x
  2. Step 2: Convert to fraction form
    217,408.98/300,027.48 = 131,356.02/x
  3. Step 3: Cross multiply
    217,408.98x = 300,027.48 × 131,356.02
  4. Step 4: Simplify right side
    217,408.98x = 39,410,415,663.43
  5. Step 5: Solve for x
    x = 39,410,415,663.43/217,408.98
  6. Step 6: Final answer
    x = 181,273.17

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1.5x scale

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.