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Finding the Fourth Proportional to 313,912.80, 433,187.82 and 170,667.90

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Solution

The fourth proportional to 313,912.80, 433,187.82 and 170,667.90 is: 235,515.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,912.80 : 433,187.82 = 170,667.90 : x
  2. Step 2: Convert to fraction form
    313,912.80/433,187.82 = 170,667.90/x
  3. Step 3: Cross multiply
    313,912.80x = 433,187.82 × 170,667.90
  4. Step 4: Simplify right side
    313,912.80x = 73,931,255,544.98
  5. Step 5: Solve for x
    x = 73,931,255,544.98/313,912.80
  6. Step 6: Final answer
    x = 235,515.26

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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.