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Finding the Fourth Proportional to 192,192.51, 288,289.80 and 126,051.48

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Solution

The fourth proportional to 192,192.51, 288,289.80 and 126,051.48 is: 189,077.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,192.51 : 288,289.80 = 126,051.48 : x
  2. Step 2: Convert to fraction form
    192,192.51/288,289.80 = 126,051.48/x
  3. Step 3: Cross multiply
    192,192.51x = 288,289.80 × 126,051.48
  4. Step 4: Simplify right side
    192,192.51x = 36,339,356,769.72
  5. Step 5: Solve for x
    x = 36,339,356,769.72/192,192.51
  6. Step 6: Final answer
    x = 189,077.90

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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.