Home / 316,489.28-436,558.48-195,667.52

Finding the Fourth Proportional to 316,489.28, 436,558.48 and 195,667.52

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Solution

The fourth proportional to 316,489.28, 436,558.48 and 195,667.52 is: 269,899.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,489.28 : 436,558.48 = 195,667.52 : x
  2. Step 2: Convert to fraction form
    316,489.28/436,558.48 = 195,667.52/x
  3. Step 3: Cross multiply
    316,489.28x = 436,558.48 × 195,667.52
  4. Step 4: Simplify right side
    316,489.28x = 85,420,315,116.57
  5. Step 5: Solve for x
    x = 85,420,315,116.57/316,489.28
  6. Step 6: Final answer
    x = 269,899.55

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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.