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Finding the Fourth Proportional to 298,992.36, 448,698.72 and 270,406.65

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Solution

The fourth proportional to 298,992.36, 448,698.72 and 270,406.65 is: 405,800.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,992.36 : 448,698.72 = 270,406.65 : x
  2. Step 2: Convert to fraction form
    298,992.36/448,698.72 = 270,406.65/x
  3. Step 3: Cross multiply
    298,992.36x = 448,698.72 × 270,406.65
  4. Step 4: Simplify right side
    298,992.36x = 121,331,118,149.58
  5. Step 5: Solve for x
    x = 121,331,118,149.58/298,992.36
  6. Step 6: Final answer
    x = 405,800.06

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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.