Home / 257,640.45-355,216.89-184,140.60

Finding the Fourth Proportional to 257,640.45, 355,216.89 and 184,140.60

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Solution

The fourth proportional to 257,640.45, 355,216.89 and 184,140.60 is: 253,880.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,640.45 : 355,216.89 = 184,140.60 : x
  2. Step 2: Convert to fraction form
    257,640.45/355,216.89 = 184,140.60/x
  3. Step 3: Cross multiply
    257,640.45x = 355,216.89 × 184,140.60
  4. Step 4: Simplify right side
    257,640.45x = 65,409,850,613.20
  5. Step 5: Solve for x
    x = 65,409,850,613.20/257,640.45
  6. Step 6: Final answer
    x = 253,880.37

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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.