Home / 199,486.20-298,979.73-99,674.40

Finding the Fourth Proportional to 199,486.20, 298,979.73 and 99,674.40

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Solution

The fourth proportional to 199,486.20, 298,979.73 and 99,674.40 is: 149,386.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,486.20 : 298,979.73 = 99,674.40 : x
  2. Step 2: Convert to fraction form
    199,486.20/298,979.73 = 99,674.40/x
  3. Step 3: Cross multiply
    199,486.20x = 298,979.73 × 99,674.40
  4. Step 4: Simplify right side
    199,486.20x = 29,800,625,199.91
  5. Step 5: Solve for x
    x = 29,800,625,199.91/199,486.20
  6. Step 6: Final answer
    x = 149,386.90

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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.