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Finding the Fourth Proportional to 236,379.81, 326,190.90 and 134,390.89

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Solution

The fourth proportional to 236,379.81, 326,190.90 and 134,390.89 is: 185,451.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,379.81 : 326,190.90 = 134,390.89 : x
  2. Step 2: Convert to fraction form
    236,379.81/326,190.90 = 134,390.89/x
  3. Step 3: Cross multiply
    236,379.81x = 326,190.90 × 134,390.89
  4. Step 4: Simplify right side
    236,379.81x = 43,837,085,360.90
  5. Step 5: Solve for x
    x = 43,837,085,360.90/236,379.81
  6. Step 6: Final answer
    x = 185,451.90

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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.