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Finding the Fourth Proportional to 171,440.55, 257,160.83 and 71,567.55

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Solution

The fourth proportional to 171,440.55, 257,160.83 and 71,567.55 is: 107,351.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,440.55 : 257,160.83 = 71,567.55 : x
  2. Step 2: Convert to fraction form
    171,440.55/257,160.83 = 71,567.55/x
  3. Step 3: Cross multiply
    171,440.55x = 257,160.83 × 71,567.55
  4. Step 4: Simplify right side
    171,440.55x = 18,404,370,201.23
  5. Step 5: Solve for x
    x = 18,404,370,201.23/171,440.55
  6. Step 6: Final answer
    x = 107,351.33

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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.