Home / 285,302.09-427,346.21-231,742.46

Finding the Fourth Proportional to 285,302.09, 427,346.21 and 231,742.46

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Solution

The fourth proportional to 285,302.09, 427,346.21 and 231,742.46 is: 347,120.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,302.09 : 427,346.21 = 231,742.46 : x
  2. Step 2: Convert to fraction form
    285,302.09/427,346.21 = 231,742.46/x
  3. Step 3: Cross multiply
    285,302.09x = 427,346.21 × 231,742.46
  4. Step 4: Simplify right side
    285,302.09x = 99,034,263,624.80
  5. Step 5: Solve for x
    x = 99,034,263,624.80/285,302.09
  6. Step 6: Final answer
    x = 347,120.71

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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.