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Finding the Fourth Proportional to 228,571.88, 315,412.01 and 131,706.92

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Solution

The fourth proportional to 228,571.88, 315,412.01 and 131,706.92 is: 181,745.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,571.88 : 315,412.01 = 131,706.92 : x
  2. Step 2: Convert to fraction form
    228,571.88/315,412.01 = 131,706.92/x
  3. Step 3: Cross multiply
    228,571.88x = 315,412.01 × 131,706.92
  4. Step 4: Simplify right side
    228,571.88x = 41,541,942,132.51
  5. Step 5: Solve for x
    x = 41,541,942,132.51/228,571.88
  6. Step 6: Final answer
    x = 181,745.64

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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.