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Finding the Fourth Proportional to 258,029.01, 387,067.95 and 100,269.63

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Solution

The fourth proportional to 258,029.01, 387,067.95 and 100,269.63 is: 150,413.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,029.01 : 387,067.95 = 100,269.63 : x
  2. Step 2: Convert to fraction form
    258,029.01/387,067.95 = 100,269.63/x
  3. Step 3: Cross multiply
    258,029.01x = 387,067.95 × 100,269.63
  4. Step 4: Simplify right side
    258,029.01x = 38,811,160,131.36
  5. Step 5: Solve for x
    x = 38,811,160,131.36/258,029.01
  6. Step 6: Final answer
    x = 150,413.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.