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Finding the Fourth Proportional to 236,082.49, 325,785.10 and 128,650.67

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Solution

The fourth proportional to 236,082.49, 325,785.10 and 128,650.67 is: 177,533.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,082.49 : 325,785.10 = 128,650.67 : x
  2. Step 2: Convert to fraction form
    236,082.49/325,785.10 = 128,650.67/x
  3. Step 3: Cross multiply
    236,082.49x = 325,785.10 × 128,650.67
  4. Step 4: Simplify right side
    236,082.49x = 41,912,471,391.02
  5. Step 5: Solve for x
    x = 41,912,471,391.02/236,082.49
  6. Step 6: Final answer
    x = 177,533.16

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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.