Finding the Fourth Proportional to 284,801.21, 426,828.14 and 209,569.09
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Solution
The fourth proportional to 284,801.21, 426,828.14 and 209,569.09 is: 314,078.67
Step by Step Solution
- Step 1: Write the proportion equation
284,801.21 : 426,828.14 = 209,569.09 : x - Step 2: Convert to fraction form
284,801.21/426,828.14 = 209,569.09/x - Step 3: Cross multiply
284,801.21x = 426,828.14 × 209,569.09 - Step 4: Simplify right side
284,801.21x = 89,449,984,886.19 - Step 5: Solve for x
x = 89,449,984,886.19/284,801.21 - Step 6: Final answer
x = 314,078.67
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.