Home / 257,131.42-384,133.40-166,435.25

Finding the Fourth Proportional to 257,131.42, 384,133.40 and 166,435.25

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Solution

The fourth proportional to 257,131.42, 384,133.40 and 166,435.25 is: 248,640.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,131.42 : 384,133.40 = 166,435.25 : x
  2. Step 2: Convert to fraction form
    257,131.42/384,133.40 = 166,435.25/x
  3. Step 3: Cross multiply
    257,131.42x = 384,133.40 × 166,435.25
  4. Step 4: Simplify right side
    257,131.42x = 63,933,336,541.68
  5. Step 5: Solve for x
    x = 63,933,336,541.68/257,131.42
  6. Step 6: Final answer
    x = 248,640.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.