Home / 306,986.64-423,529.20-186,040.68

Finding the Fourth Proportional to 306,986.64, 423,529.20 and 186,040.68

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Solution

The fourth proportional to 306,986.64, 423,529.20 and 186,040.68 is: 256,668.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,986.64 : 423,529.20 = 186,040.68 : x
  2. Step 2: Convert to fraction form
    306,986.64/423,529.20 = 186,040.68/x
  3. Step 3: Cross multiply
    306,986.64x = 423,529.20 × 186,040.68
  4. Step 4: Simplify right side
    306,986.64x = 78,793,660,367.86
  5. Step 5: Solve for x
    x = 78,793,660,367.86/306,986.64
  6. Step 6: Final answer
    x = 256,668.04

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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.