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Finding the Fourth Proportional to 201,352.56, 301,625.61 and 121,345.98

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Solution

The fourth proportional to 201,352.56, 301,625.61 and 121,345.98 is: 181,775.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,352.56 : 301,625.61 = 121,345.98 : x
  2. Step 2: Convert to fraction form
    201,352.56/301,625.61 = 121,345.98/x
  3. Step 3: Cross multiply
    201,352.56x = 301,625.61 × 121,345.98
  4. Step 4: Simplify right side
    201,352.56x = 36,601,055,238.55
  5. Step 5: Solve for x
    x = 36,601,055,238.55/201,352.56
  6. Step 6: Final answer
    x = 181,775.96

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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.