Home / 298,811.10-448,216.65-121,323.90

Finding the Fourth Proportional to 298,811.10, 448,216.65 and 121,323.90

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Solution

The fourth proportional to 298,811.10, 448,216.65 and 121,323.90 is: 181,985.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,811.10 : 448,216.65 = 121,323.90 : x
  2. Step 2: Convert to fraction form
    298,811.10/448,216.65 = 121,323.90/x
  3. Step 3: Cross multiply
    298,811.10x = 448,216.65 × 121,323.90
  4. Step 4: Simplify right side
    298,811.10x = 54,379,392,022.94
  5. Step 5: Solve for x
    x = 54,379,392,022.94/298,811.10
  6. Step 6: Final answer
    x = 181,985.85

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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.