Finding the Fourth Proportional to 234,381.78, 323,234.26 and 153,778.68
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Solution
The fourth proportional to 234,381.78, 323,234.26 and 153,778.68 is: 212,075.09
Step by Step Solution
- Step 1: Write the proportion equation
234,381.78 : 323,234.26 = 153,778.68 : x - Step 2: Convert to fraction form
234,381.78/323,234.26 = 153,778.68/x - Step 3: Cross multiply
234,381.78x = 323,234.26 × 153,778.68 - Step 4: Simplify right side
234,381.78x = 49,706,537,449.13 - Step 5: Solve for x
x = 49,706,537,449.13/234,381.78 - Step 6: Final answer
x = 212,075.09
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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.