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Finding the Fourth Proportional to 236,500.29, 354,803.90 and 78,734.97

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Solution

The fourth proportional to 236,500.29, 354,803.90 and 78,734.97 is: 118,120.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,500.29 : 354,803.90 = 78,734.97 : x
  2. Step 2: Convert to fraction form
    236,500.29/354,803.90 = 78,734.97/x
  3. Step 3: Cross multiply
    236,500.29x = 354,803.90 × 78,734.97
  4. Step 4: Simplify right side
    236,500.29x = 27,935,474,028.71
  5. Step 5: Solve for x
    x = 27,935,474,028.71/236,500.29
  6. Step 6: Final answer
    x = 118,120.25

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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.