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Finding the Fourth Proportional to 171,467.09, 257,360.22 and 87,290.27

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Solution

The fourth proportional to 171,467.09, 257,360.22 and 87,290.27 is: 131,016.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,467.09 : 257,360.22 = 87,290.27 : x
  2. Step 2: Convert to fraction form
    171,467.09/257,360.22 = 87,290.27/x
  3. Step 3: Cross multiply
    171,467.09x = 257,360.22 × 87,290.27
  4. Step 4: Simplify right side
    171,467.09x = 22,465,041,804.26
  5. Step 5: Solve for x
    x = 22,465,041,804.26/171,467.09
  6. Step 6: Final answer
    x = 131,016.64

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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.