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Finding the Fourth Proportional to 446,859.91, 670,290 and 131,316.85

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Solution

The fourth proportional to 446,859.91, 670,290 and 131,316.85 is: 196,975.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,859.91 : 670,290 = 131,316.85 : x
  2. Step 2: Convert to fraction form
    446,859.91/670,290 = 131,316.85/x
  3. Step 3: Cross multiply
    446,859.91x = 670,290 × 131,316.85
  4. Step 4: Simplify right side
    446,859.91x = 88,020,368,035.05
  5. Step 5: Solve for x
    x = 88,020,368,035.05/446,859.91
  6. Step 6: Final answer
    x = 196,975.31

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1.5x scale

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.