Finding the Fourth Proportional to 252,412.88, 348,329.80 and 139,235.92
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Solution
The fourth proportional to 252,412.88, 348,329.80 and 139,235.92 is: 192,145.58
Step by Step Solution
- Step 1: Write the proportion equation
252,412.88 : 348,329.80 = 139,235.92 : x - Step 2: Convert to fraction form
252,412.88/348,329.80 = 139,235.92/x - Step 3: Cross multiply
252,412.88x = 348,329.80 × 139,235.92 - Step 4: Simplify right side
252,412.88x = 48,500,020,166.42 - Step 5: Solve for x
x = 48,500,020,166.42/252,412.88 - Step 6: Final answer
x = 192,145.58
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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.