Finding the Fourth Proportional to 319,947.16, 479,871.42 and 106,718.80
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Solution
The fourth proportional to 319,947.16, 479,871.42 and 106,718.80 is: 160,061.75
Step by Step Solution
- Step 1: Write the proportion equation
319,947.16 : 479,871.42 = 106,718.80 : x - Step 2: Convert to fraction form
319,947.16/479,871.42 = 106,718.80/x - Step 3: Cross multiply
319,947.16x = 479,871.42 × 106,718.80 - Step 4: Simplify right side
319,947.16x = 51,211,302,096.70 - Step 5: Solve for x
x = 51,211,302,096.70/319,947.16 - Step 6: Final answer
x = 160,061.75
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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.