Finding the Fourth Proportional to 399,042.84, 550,661.96 and 217,750.26
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Solution
The fourth proportional to 399,042.84, 550,661.96 and 217,750.26 is: 300,486.00
Step by Step Solution
- Step 1: Write the proportion equation
399,042.84 : 550,661.96 = 217,750.26 : x - Step 2: Convert to fraction form
399,042.84/550,661.96 = 217,750.26/x - Step 3: Cross multiply
399,042.84x = 550,661.96 × 217,750.26 - Step 4: Simplify right side
399,042.84x = 119,906,784,962.11 - Step 5: Solve for x
x = 119,906,784,962.11/399,042.84 - Step 6: Final answer
x = 300,486.00
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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.