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Finding the Fourth Proportional to 171,504.40, 257,256.72 and 71,610.10

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Solution

The fourth proportional to 171,504.40, 257,256.72 and 71,610.10 is: 107,415.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,504.40 : 257,256.72 = 71,610.10 : x
  2. Step 2: Convert to fraction form
    171,504.40/257,256.72 = 71,610.10/x
  3. Step 3: Cross multiply
    171,504.40x = 257,256.72 × 71,610.10
  4. Step 4: Simplify right side
    171,504.40x = 18,422,179,444.87
  5. Step 5: Solve for x
    x = 18,422,179,444.87/171,504.40
  6. Step 6: Final answer
    x = 107,415.20

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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.