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Finding the Fourth Proportional to 355,400.08, 490,459.08 and 194,250.64

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Solution

The fourth proportional to 355,400.08, 490,459.08 and 194,250.64 is: 268,069.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,400.08 : 490,459.08 = 194,250.64 : x
  2. Step 2: Convert to fraction form
    355,400.08/490,459.08 = 194,250.64/x
  3. Step 3: Cross multiply
    355,400.08x = 490,459.08 × 194,250.64
  4. Step 4: Simplify right side
    355,400.08x = 95,271,990,183.81
  5. Step 5: Solve for x
    x = 95,271,990,183.81/355,400.08
  6. Step 6: Final answer
    x = 268,069.69

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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.