Finding the Fourth Proportional to 405,913.19, 560,122.10 and 242,537.13
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Solution
The fourth proportional to 405,913.19, 560,122.10 and 242,537.13 is: 334,678.47
Step by Step Solution
- Step 1: Write the proportion equation
405,913.19 : 560,122.10 = 242,537.13 : x - Step 2: Convert to fraction form
405,913.19/560,122.10 = 242,537.13/x - Step 3: Cross multiply
405,913.19x = 560,122.10 × 242,537.13 - Step 4: Simplify right side
405,913.19x = 135,850,405,370.89 - Step 5: Solve for x
x = 135,850,405,370.89/405,913.19 - Step 6: Final answer
x = 334,678.47
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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.