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Finding the Fourth Proportional to 298,015.39, 411,255.38 and 162,048.18

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Solution

The fourth proportional to 298,015.39, 411,255.38 and 162,048.18 is: 223,623.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,015.39 : 411,255.38 = 162,048.18 : x
  2. Step 2: Convert to fraction form
    298,015.39/411,255.38 = 162,048.18/x
  3. Step 3: Cross multiply
    298,015.39x = 411,255.38 × 162,048.18
  4. Step 4: Simplify right side
    298,015.39x = 66,643,185,844.21
  5. Step 5: Solve for x
    x = 66,643,185,844.21/298,015.39
  6. Step 6: Final answer
    x = 223,623.30

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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.