Finding the Fourth Proportional to 319,223.62, 478,844.30 and 79,327.84
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Solution
The fourth proportional to 319,223.62, 478,844.30 and 79,327.84 is: 118,993.96
Step by Step Solution
- Step 1: Write the proportion equation
319,223.62 : 478,844.30 = 79,327.84 : x - Step 2: Convert to fraction form
319,223.62/478,844.30 = 79,327.84/x - Step 3: Cross multiply
319,223.62x = 478,844.30 × 79,327.84 - Step 4: Simplify right side
319,223.62x = 37,985,684,015.31 - Step 5: Solve for x
x = 37,985,684,015.31/319,223.62 - Step 6: Final answer
x = 118,993.96
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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.