Home / 398,734.20-598,274.10-201,742.20

Finding the Fourth Proportional to 398,734.20, 598,274.10 and 201,742.20

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Solution

The fourth proportional to 398,734.20, 598,274.10 and 201,742.20 is: 302,700.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,734.20 : 598,274.10 = 201,742.20 : x
  2. Step 2: Convert to fraction form
    398,734.20/598,274.10 = 201,742.20/x
  3. Step 3: Cross multiply
    398,734.20x = 598,274.10 × 201,742.20
  4. Step 4: Simplify right side
    398,734.20x = 120,697,133,137.02
  5. Step 5: Solve for x
    x = 120,697,133,137.02/398,734.20
  6. Step 6: Final answer
    x = 302,700.73

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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.