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Finding the Fourth Proportional to 298,258.12, 411,596.20 and 164,122.12

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Solution

The fourth proportional to 298,258.12, 411,596.20 and 164,122.12 is: 226,488.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,258.12 : 411,596.20 = 164,122.12 : x
  2. Step 2: Convert to fraction form
    298,258.12/411,596.20 = 164,122.12/x
  3. Step 3: Cross multiply
    298,258.12x = 411,596.20 × 164,122.12
  4. Step 4: Simplify right side
    298,258.12x = 67,552,040,927.94
  5. Step 5: Solve for x
    x = 67,552,040,927.94/298,258.12
  6. Step 6: Final answer
    x = 226,488.52

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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.