Home / 199,435.40-298,958.70-178,440.20

Finding the Fourth Proportional to 199,435.40, 298,958.70 and 178,440.20

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Solution

The fourth proportional to 199,435.40, 298,958.70 and 178,440.20 is: 267,486.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,435.40 : 298,958.70 = 178,440.20 : x
  2. Step 2: Convert to fraction form
    199,435.40/298,958.70 = 178,440.20/x
  3. Step 3: Cross multiply
    199,435.40x = 298,958.70 × 178,440.20
  4. Step 4: Simplify right side
    199,435.40x = 53,346,250,219.74
  5. Step 5: Solve for x
    x = 53,346,250,219.74/199,435.40
  6. Step 6: Final answer
    x = 267,486.37

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1.5x scale

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.