Home / 326,742.56-490,144.11-127,077.96

Finding the Fourth Proportional to 326,742.56, 490,144.11 and 127,077.96

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Solution

The fourth proportional to 326,742.56, 490,144.11 and 127,077.96 is: 190,628.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,742.56 : 490,144.11 = 127,077.96 : x
  2. Step 2: Convert to fraction form
    326,742.56/490,144.11 = 127,077.96/x
  3. Step 3: Cross multiply
    326,742.56x = 490,144.11 × 127,077.96
  4. Step 4: Simplify right side
    326,742.56x = 62,286,512,969.43
  5. Step 5: Solve for x
    x = 62,286,512,969.43/326,742.56
  6. Step 6: Final answer
    x = 190,628.71

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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.