Home / 298,421.77-447,618.07-111,418.69

Finding the Fourth Proportional to 298,421.77, 447,618.07 and 111,418.69

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Solution

The fourth proportional to 298,421.77, 447,618.07 and 111,418.69 is: 167,122.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,421.77 : 447,618.07 = 111,418.69 : x
  2. Step 2: Convert to fraction form
    298,421.77/447,618.07 = 111,418.69/x
  3. Step 3: Cross multiply
    298,421.77x = 447,618.07 × 111,418.69
  4. Step 4: Simplify right side
    298,421.77x = 49,873,017,582.14
  5. Step 5: Solve for x
    x = 49,873,017,582.14/298,421.77
  6. Step 6: Final answer
    x = 167,122.59

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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.