Finding the Fourth Proportional to 310,821.84, 428,893.79 and 174,851.19
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Solution
The fourth proportional to 310,821.84, 428,893.79 and 174,851.19 is: 241,271.94
Step by Step Solution
- Step 1: Write the proportion equation
310,821.84 : 428,893.79 = 174,851.19 : x - Step 2: Convert to fraction form
310,821.84/428,893.79 = 174,851.19/x - Step 3: Cross multiply
310,821.84x = 428,893.79 × 174,851.19 - Step 4: Simplify right side
310,821.84x = 74,992,588,690.85 - Step 5: Solve for x
x = 74,992,588,690.85/310,821.84 - Step 6: Final answer
x = 241,271.94
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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.