Finding the Fourth Proportional to 268,466.40, 403,006.80 and 157,720.80
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Solution
The fourth proportional to 268,466.40, 403,006.80 and 157,720.80 is: 236,761.68
Step by Step Solution
- Step 1: Write the proportion equation
268,466.40 : 403,006.80 = 157,720.80 : x - Step 2: Convert to fraction form
268,466.40/403,006.80 = 157,720.80/x - Step 3: Cross multiply
268,466.40x = 403,006.80 × 157,720.80 - Step 4: Simplify right side
268,466.40x = 63,562,554,901.44 - Step 5: Solve for x
x = 63,562,554,901.44/268,466.40 - Step 6: Final answer
x = 236,761.68
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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.