Finding the Fourth Proportional to 389,842.14, 537,983.79 and 210,994.14
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Solution
The fourth proportional to 389,842.14, 537,983.79 and 210,994.14 is: 291,172.80
Step by Step Solution
- Step 1: Write the proportion equation
389,842.14 : 537,983.79 = 210,994.14 : x - Step 2: Convert to fraction form
389,842.14/537,983.79 = 210,994.14/x - Step 3: Cross multiply
389,842.14x = 537,983.79 × 210,994.14 - Step 4: Simplify right side
389,842.14x = 113,511,427,104.99 - Step 5: Solve for x
x = 113,511,427,104.99/389,842.14 - Step 6: Final answer
x = 291,172.80
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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.