Home / 355,247.04-490,568.30-228,144.06

Finding the Fourth Proportional to 355,247.04, 490,568.30 and 228,144.06

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Solution

The fourth proportional to 355,247.04, 490,568.30 and 228,144.06 is: 315,049.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,247.04 : 490,568.30 = 228,144.06 : x
  2. Step 2: Convert to fraction form
    355,247.04/490,568.30 = 228,144.06/x
  3. Step 3: Cross multiply
    355,247.04x = 490,568.30 × 228,144.06
  4. Step 4: Simplify right side
    355,247.04x = 111,920,242,528.58
  5. Step 5: Solve for x
    x = 111,920,242,528.58/355,247.04
  6. Step 6: Final answer
    x = 315,049.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.