Finding the Fourth Proportional to 405,918.78, 560,156.49 and 224,638.26
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Solution
The fourth proportional to 405,918.78, 560,156.49 and 224,638.26 is: 309,994.48
Step by Step Solution
- Step 1: Write the proportion equation
405,918.78 : 560,156.49 = 224,638.26 : x - Step 2: Convert to fraction form
405,918.78/560,156.49 = 224,638.26/x - Step 3: Cross multiply
405,918.78x = 560,156.49 × 224,638.26 - Step 4: Simplify right side
405,918.78x = 125,832,579,241.31 - Step 5: Solve for x
x = 125,832,579,241.31/405,918.78 - Step 6: Final answer
x = 309,994.48
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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.