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Finding the Fourth Proportional to 296,739.40, 445,109.10 and 119,273.80

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Solution

The fourth proportional to 296,739.40, 445,109.10 and 119,273.80 is: 178,910.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,739.40 : 445,109.10 = 119,273.80 : x
  2. Step 2: Convert to fraction form
    296,739.40/445,109.10 = 119,273.80/x
  3. Step 3: Cross multiply
    296,739.40x = 445,109.10 × 119,273.80
  4. Step 4: Simplify right side
    296,739.40x = 53,089,853,771.58
  5. Step 5: Solve for x
    x = 53,089,853,771.58/296,739.40
  6. Step 6: Final answer
    x = 178,910.70

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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.