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Finding the Fourth Proportional to 227,958.39, 342,036 and 122,756.40

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Solution

The fourth proportional to 227,958.39, 342,036 and 122,756.40 is: 184,187.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,958.39 : 342,036 = 122,756.40 : x
  2. Step 2: Convert to fraction form
    227,958.39/342,036 = 122,756.40/x
  3. Step 3: Cross multiply
    227,958.39x = 342,036 × 122,756.40
  4. Step 4: Simplify right side
    227,958.39x = 41,987,108,030.40
  5. Step 5: Solve for x
    x = 41,987,108,030.40/227,958.39
  6. Step 6: Final answer
    x = 184,187.60

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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.