Home / 257,425.10-355,203.04-171,512.22

Finding the Fourth Proportional to 257,425.10, 355,203.04 and 171,512.22

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Solution

The fourth proportional to 257,425.10, 355,203.04 and 171,512.22 is: 236,657.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,425.10 : 355,203.04 = 171,512.22 : x
  2. Step 2: Convert to fraction form
    257,425.10/355,203.04 = 171,512.22/x
  3. Step 3: Cross multiply
    257,425.10x = 355,203.04 × 171,512.22
  4. Step 4: Simplify right side
    257,425.10x = 60,921,661,941.15
  5. Step 5: Solve for x
    x = 60,921,661,941.15/257,425.10
  6. Step 6: Final answer
    x = 236,657.82

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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.