Finding the Fourth Proportional to 405,478.84, 559,557.08 and 224,195.44
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Solution
The fourth proportional to 405,478.84, 559,557.08 and 224,195.44 is: 309,387.65
Step by Step Solution
- Step 1: Write the proportion equation
405,478.84 : 559,557.08 = 224,195.44 : x - Step 2: Convert to fraction form
405,478.84/559,557.08 = 224,195.44/x - Step 3: Cross multiply
405,478.84x = 559,557.08 × 224,195.44 - Step 4: Simplify right side
405,478.84x = 125,450,145,755.72 - Step 5: Solve for x
x = 125,450,145,755.72/405,478.84 - Step 6: Final answer
x = 309,387.65
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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.