Finding the Fourth Proportional to 283,729.61, 391,539.49 and 154,670.65
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Solution
The fourth proportional to 283,729.61, 391,539.49 and 154,670.65 is: 213,441.47
Step by Step Solution
- Step 1: Write the proportion equation
283,729.61 : 391,539.49 = 154,670.65 : x - Step 2: Convert to fraction form
283,729.61/391,539.49 = 154,670.65/x - Step 3: Cross multiply
283,729.61x = 391,539.49 × 154,670.65 - Step 4: Simplify right side
283,729.61x = 60,559,666,053.44 - Step 5: Solve for x
x = 60,559,666,053.44/283,729.61 - Step 6: Final answer
x = 213,441.47
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.