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Finding the Fourth Proportional to 291,256.80, 436,863.60 and 122,733.60

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Solution

The fourth proportional to 291,256.80, 436,863.60 and 122,733.60 is: 184,091.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,256.80 : 436,863.60 = 122,733.60 : x
  2. Step 2: Convert to fraction form
    291,256.80/436,863.60 = 122,733.60/x
  3. Step 3: Cross multiply
    291,256.80x = 436,863.60 × 122,733.60
  4. Step 4: Simplify right side
    291,256.80x = 53,617,842,336.96
  5. Step 5: Solve for x
    x = 53,617,842,336.96/291,256.80
  6. Step 6: Final answer
    x = 184,091.30

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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.