Home / 199,827.60-299,741.40-198,661.20

Finding the Fourth Proportional to 199,827.60, 299,741.40 and 198,661.20

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Solution

The fourth proportional to 199,827.60, 299,741.40 and 198,661.20 is: 297,991.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,827.60 : 299,741.40 = 198,661.20 : x
  2. Step 2: Convert to fraction form
    199,827.60/299,741.40 = 198,661.20/x
  3. Step 3: Cross multiply
    199,827.60x = 299,741.40 × 198,661.20
  4. Step 4: Simplify right side
    199,827.60x = 59,546,986,213.68
  5. Step 5: Solve for x
    x = 59,546,986,213.68/199,827.60
  6. Step 6: Final answer
    x = 297,991.80

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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.