Finding the Fourth Proportional to 304,933.68, 420,878.70 and 202,963.19
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Solution
The fourth proportional to 304,933.68, 420,878.70 and 202,963.19 is: 280,135.93
Step by Step Solution
- Step 1: Write the proportion equation
304,933.68 : 420,878.70 = 202,963.19 : x - Step 2: Convert to fraction form
304,933.68/420,878.70 = 202,963.19/x - Step 3: Cross multiply
304,933.68x = 420,878.70 × 202,963.19 - Step 4: Simplify right side
304,933.68x = 85,422,881,450.66 - Step 5: Solve for x
x = 85,422,881,450.66/304,933.68 - Step 6: Final answer
x = 280,135.93
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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.