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Finding the Fourth Proportional to 192,668.16, 288,628.32 and 141,975.20

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Solution

The fourth proportional to 192,668.16, 288,628.32 and 141,975.20 is: 212,687.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,668.16 : 288,628.32 = 141,975.20 : x
  2. Step 2: Convert to fraction form
    192,668.16/288,628.32 = 141,975.20/x
  3. Step 3: Cross multiply
    192,668.16x = 288,628.32 × 141,975.20
  4. Step 4: Simplify right side
    192,668.16x = 40,978,063,457.66
  5. Step 5: Solve for x
    x = 40,978,063,457.66/192,668.16
  6. Step 6: Final answer
    x = 212,687.26

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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.