Finding the Fourth Proportional to 211,122.40, 316,603.41 and 68,933.92
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Solution
The fourth proportional to 211,122.40, 316,603.41 and 68,933.92 is: 103,374.70
Step by Step Solution
- Step 1: Write the proportion equation
211,122.40 : 316,603.41 = 68,933.92 : x - Step 2: Convert to fraction form
211,122.40/316,603.41 = 68,933.92/x - Step 3: Cross multiply
211,122.40x = 316,603.41 × 68,933.92 - Step 4: Simplify right side
211,122.40x = 21,824,714,136.67 - Step 5: Solve for x
x = 21,824,714,136.67/211,122.40 - Step 6: Final answer
x = 103,374.70
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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.