Finding the Fourth Proportional to 319,904.12, 479,806.97 and 106,675.74
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Solution
The fourth proportional to 319,904.12, 479,806.97 and 106,675.74 is: 159,997.20
Step by Step Solution
- Step 1: Write the proportion equation
319,904.12 : 479,806.97 = 106,675.74 : x - Step 2: Convert to fraction form
319,904.12/479,806.97 = 106,675.74/x - Step 3: Cross multiply
319,904.12x = 479,806.97 × 106,675.74 - Step 4: Simplify right side
319,904.12x = 51,183,763,048.53 - Step 5: Solve for x
x = 51,183,763,048.53/319,904.12 - Step 6: Final answer
x = 159,997.20
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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.