Home / 199,135.40-298,508.70-178,140.20

Finding the Fourth Proportional to 199,135.40, 298,508.70 and 178,140.20

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Solution

The fourth proportional to 199,135.40, 298,508.70 and 178,140.20 is: 267,036.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,135.40 : 298,508.70 = 178,140.20 : x
  2. Step 2: Convert to fraction form
    199,135.40/298,508.70 = 178,140.20/x
  3. Step 3: Cross multiply
    199,135.40x = 298,508.70 × 178,140.20
  4. Step 4: Simplify right side
    199,135.40x = 53,176,399,519.74
  5. Step 5: Solve for x
    x = 53,176,399,519.74/199,135.40
  6. Step 6: Final answer
    x = 267,036.40

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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.