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Finding the Fourth Proportional to 236,093.60, 354,139.68 and 74,000

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Solution

The fourth proportional to 236,093.60, 354,139.68 and 74,000 is: 110,999.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,093.60 : 354,139.68 = 74,000 : x
  2. Step 2: Convert to fraction form
    236,093.60/354,139.68 = 74,000/x
  3. Step 3: Cross multiply
    236,093.60x = 354,139.68 × 74,000
  4. Step 4: Simplify right side
    236,093.60x = 26,206,336,320
  5. Step 5: Solve for x
    x = 26,206,336,320/236,093.60
  6. Step 6: Final answer
    x = 110,999.77

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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.