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Finding the Fourth Proportional to 258,348.98, 356,521.74 and 149,468.60

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Solution

The fourth proportional to 258,348.98, 356,521.74 and 149,468.60 is: 206,266.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,348.98 : 356,521.74 = 149,468.60 : x
  2. Step 2: Convert to fraction form
    258,348.98/356,521.74 = 149,468.60/x
  3. Step 3: Cross multiply
    258,348.98x = 356,521.74 × 149,468.60
  4. Step 4: Simplify right side
    258,348.98x = 53,288,805,347.36
  5. Step 5: Solve for x
    x = 53,288,805,347.36/258,348.98
  6. Step 6: Final answer
    x = 206,266.75

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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.