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Finding the Fourth Proportional to 298,287.45, 411,636.74 and 164,151.45

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Solution

The fourth proportional to 298,287.45, 411,636.74 and 164,151.45 is: 226,529.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,287.45 : 411,636.74 = 164,151.45 : x
  2. Step 2: Convert to fraction form
    298,287.45/411,636.74 = 164,151.45/x
  3. Step 3: Cross multiply
    298,287.45x = 411,636.74 × 164,151.45
  4. Step 4: Simplify right side
    298,287.45x = 67,570,764,865.33
  5. Step 5: Solve for x
    x = 67,570,764,865.33/298,287.45
  6. Step 6: Final answer
    x = 226,529.03

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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.