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Finding the Fourth Proportional to 236,379.70, 326,276.76 and 145,764.10

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Solution

The fourth proportional to 236,379.70, 326,276.76 and 145,764.10 is: 201,199.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,379.70 : 326,276.76 = 145,764.10 : x
  2. Step 2: Convert to fraction form
    236,379.70/326,276.76 = 145,764.10/x
  3. Step 3: Cross multiply
    236,379.70x = 326,276.76 × 145,764.10
  4. Step 4: Simplify right side
    236,379.70x = 47,559,438,272.32
  5. Step 5: Solve for x
    x = 47,559,438,272.32/236,379.70
  6. Step 6: Final answer
    x = 201,199.33

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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.