Finding the Fourth Proportional to 268,126.21, 402,188.86 and 68,446.56
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Solution
The fourth proportional to 268,126.21, 402,188.86 and 68,446.56 is: 102,669.72
Step by Step Solution
- Step 1: Write the proportion equation
268,126.21 : 402,188.86 = 68,446.56 : x - Step 2: Convert to fraction form
268,126.21/402,188.86 = 68,446.56/x - Step 3: Cross multiply
268,126.21x = 402,188.86 × 68,446.56 - Step 4: Simplify right side
268,126.21x = 27,528,443,937.32 - Step 5: Solve for x
x = 27,528,443,937.32/268,126.21 - Step 6: Final answer
x = 102,669.72
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.