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Finding the Fourth Proportional to 192,351.53, 288,467.32 and 72,425.16

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Solution

The fourth proportional to 192,351.53, 288,467.32 and 72,425.16 is: 108,615.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,351.53 : 288,467.32 = 72,425.16 : x
  2. Step 2: Convert to fraction form
    192,351.53/288,467.32 = 72,425.16/x
  3. Step 3: Cross multiply
    192,351.53x = 288,467.32 × 72,425.16
  4. Step 4: Simplify right side
    192,351.53x = 20,892,291,805.77
  5. Step 5: Solve for x
    x = 20,892,291,805.77/192,351.53
  6. Step 6: Final answer
    x = 108,615.16

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1.5x scale

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.