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Finding the Fourth Proportional to 192,554.89, 288,657.37 and 87,316.45

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Solution

The fourth proportional to 192,554.89, 288,657.37 and 87,316.45 is: 130,895.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,554.89 : 288,657.37 = 87,316.45 : x
  2. Step 2: Convert to fraction form
    192,554.89/288,657.37 = 87,316.45/x
  3. Step 3: Cross multiply
    192,554.89x = 288,657.37 × 87,316.45
  4. Step 4: Simplify right side
    192,554.89x = 25,204,534,934.87
  5. Step 5: Solve for x
    x = 25,204,534,934.87/192,554.89
  6. Step 6: Final answer
    x = 130,895.33

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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.