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Finding the Fourth Proportional to 236,446.40, 354,564.60 and 86,647.52

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Solution

The fourth proportional to 236,446.40, 354,564.60 and 86,647.52 is: 129,932.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,446.40 : 354,564.60 = 86,647.52 : x
  2. Step 2: Convert to fraction form
    236,446.40/354,564.60 = 86,647.52/x
  3. Step 3: Cross multiply
    236,446.40x = 354,564.60 × 86,647.52
  4. Step 4: Simplify right side
    236,446.40x = 30,722,143,269.79
  5. Step 5: Solve for x
    x = 30,722,143,269.79/236,446.40
  6. Step 6: Final answer
    x = 129,932.80

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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.