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Finding the Fourth Proportional to 192,458.76, 288,699.96 and 74,130.46

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Solution

The fourth proportional to 192,458.76, 288,699.96 and 74,130.46 is: 111,200.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,458.76 : 288,699.96 = 74,130.46 : x
  2. Step 2: Convert to fraction form
    192,458.76/288,699.96 = 74,130.46/x
  3. Step 3: Cross multiply
    192,458.76x = 288,699.96 × 74,130.46
  4. Step 4: Simplify right side
    192,458.76x = 21,401,460,836.78
  5. Step 5: Solve for x
    x = 21,401,460,836.78/192,458.76
  6. Step 6: Final answer
    x = 111,200.24

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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.