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Finding the Fourth Proportional to 302,678.91, 453,906.59 and 131,879.48

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Solution

The fourth proportional to 302,678.91, 453,906.59 and 131,879.48 is: 197,770.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,678.91 : 453,906.59 = 131,879.48 : x
  2. Step 2: Convert to fraction form
    302,678.91/453,906.59 = 131,879.48/x
  3. Step 3: Cross multiply
    302,678.91x = 453,906.59 × 131,879.48
  4. Step 4: Simplify right side
    302,678.91x = 59,860,962,128.84
  5. Step 5: Solve for x
    x = 59,860,962,128.84/302,678.91
  6. Step 6: Final answer
    x = 197,770.51

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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.