Finding the Fourth Proportional to 266,396.99, 399,589.82 and 86,482.12
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Solution
The fourth proportional to 266,396.99, 399,589.82 and 86,482.12 is: 129,721.35
Step by Step Solution
- Step 1: Write the proportion equation
266,396.99 : 399,589.82 = 86,482.12 : x - Step 2: Convert to fraction form
266,396.99/399,589.82 = 86,482.12/x - Step 3: Cross multiply
266,396.99x = 399,589.82 × 86,482.12 - Step 4: Simplify right side
266,396.99x = 34,557,376,220.88 - Step 5: Solve for x
x = 34,557,376,220.88/266,396.99 - Step 6: Final answer
x = 129,721.35
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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.