Home / 217,640.37-300,373.02-122,152.29

Finding the Fourth Proportional to 217,640.37, 300,373.02 and 122,152.29

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Solution

The fourth proportional to 217,640.37, 300,373.02 and 122,152.29 is: 168,586.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,640.37 : 300,373.02 = 122,152.29 : x
  2. Step 2: Convert to fraction form
    217,640.37/300,373.02 = 122,152.29/x
  3. Step 3: Cross multiply
    217,640.37x = 300,373.02 × 122,152.29
  4. Step 4: Simplify right side
    217,640.37x = 36,691,252,247.22
  5. Step 5: Solve for x
    x = 36,691,252,247.22/217,640.37
  6. Step 6: Final answer
    x = 168,586.61

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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.