Home / 217,520.64-300,173.76-122,025.60

Finding the Fourth Proportional to 217,520.64, 300,173.76 and 122,025.60

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Solution

The fourth proportional to 217,520.64, 300,173.76 and 122,025.60 is: 168,392.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,520.64 : 300,173.76 = 122,025.60 : x
  2. Step 2: Convert to fraction form
    217,520.64/300,173.76 = 122,025.60/x
  3. Step 3: Cross multiply
    217,520.64x = 300,173.76 × 122,025.60
  4. Step 4: Simplify right side
    217,520.64x = 36,628,883,168.26
  5. Step 5: Solve for x
    x = 36,628,883,168.26/217,520.64
  6. Step 6: Final answer
    x = 168,392.68

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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.