Home / 199,317.60-298,976.40-99,784.80

Finding the Fourth Proportional to 199,317.60, 298,976.40 and 99,784.80

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Solution

The fourth proportional to 199,317.60, 298,976.40 and 99,784.80 is: 149,677.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,317.60 : 298,976.40 = 99,784.80 : x
  2. Step 2: Convert to fraction form
    199,317.60/298,976.40 = 99,784.80/x
  3. Step 3: Cross multiply
    199,317.60x = 298,976.40 × 99,784.80
  4. Step 4: Simplify right side
    199,317.60x = 29,833,300,278.72
  5. Step 5: Solve for x
    x = 29,833,300,278.72/199,317.60
  6. Step 6: Final answer
    x = 149,677.20

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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.