Finding the Fourth Proportional to 287,742.18, 431,737.68 and 154,466.82
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Solution
The fourth proportional to 287,742.18, 431,737.68 and 154,466.82 is: 231,767.02
Step by Step Solution
- Step 1: Write the proportion equation
287,742.18 : 431,737.68 = 154,466.82 : x - Step 2: Convert to fraction form
287,742.18/431,737.68 = 154,466.82/x - Step 3: Cross multiply
287,742.18x = 431,737.68 × 154,466.82 - Step 4: Simplify right side
287,742.18x = 66,689,146,503.78 - Step 5: Solve for x
x = 66,689,146,503.78/287,742.18 - Step 6: Final answer
x = 231,767.02
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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.