Finding the Fourth Proportional to 252,118.05, 347,918.26 and 137,397.62
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Solution
The fourth proportional to 252,118.05, 347,918.26 and 137,397.62 is: 189,606.18
Step by Step Solution
- Step 1: Write the proportion equation
252,118.05 : 347,918.26 = 137,397.62 : x - Step 2: Convert to fraction form
252,118.05/347,918.26 = 137,397.62/x - Step 3: Cross multiply
252,118.05x = 347,918.26 × 137,397.62 - Step 4: Simplify right side
252,118.05x = 47,803,140,878.54 - Step 5: Solve for x
x = 47,803,140,878.54/252,118.05 - Step 6: Final answer
x = 189,606.18
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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.