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Finding the Fourth Proportional to 192,811.74, 289,214.55 and 52,570.37

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Solution

The fourth proportional to 192,811.74, 289,214.55 and 52,570.37 is: 78,854.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,811.74 : 289,214.55 = 52,570.37 : x
  2. Step 2: Convert to fraction form
    192,811.74/289,214.55 = 52,570.37/x
  3. Step 3: Cross multiply
    192,811.74x = 289,214.55 × 52,570.37
  4. Step 4: Simplify right side
    192,811.74x = 15,204,114,999.09
  5. Step 5: Solve for x
    x = 15,204,114,999.09/192,811.74
  6. Step 6: Final answer
    x = 78,854.72

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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.