Finding the Fourth Proportional to 319,914.62, 479,822.71 and 106,686.26
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Solution
The fourth proportional to 319,914.62, 479,822.71 and 106,686.26 is: 160,012.98
Step by Step Solution
- Step 1: Write the proportion equation
319,914.62 : 479,822.71 = 106,686.26 : x - Step 2: Convert to fraction form
319,914.62/479,822.71 = 106,686.26/x - Step 3: Cross multiply
319,914.62x = 479,822.71 × 106,686.26 - Step 4: Simplify right side
319,914.62x = 51,190,490,392.96 - Step 5: Solve for x
x = 51,190,490,392.96/319,914.62 - Step 6: Final answer
x = 160,012.98
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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.