Finding the Fourth Proportional to 287,116.79, 430,704.64 and 109,772.96
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Solution
The fourth proportional to 287,116.79, 430,704.64 and 109,772.96 is: 164,670.70
Step by Step Solution
- Step 1: Write the proportion equation
287,116.79 : 430,704.64 = 109,772.96 : x - Step 2: Convert to fraction form
287,116.79/430,704.64 = 109,772.96/x - Step 3: Cross multiply
287,116.79x = 430,704.64 × 109,772.96 - Step 4: Simplify right side
287,116.79x = 47,279,721,202.23 - Step 5: Solve for x
x = 47,279,721,202.23/287,116.79 - Step 6: Final answer
x = 164,670.70
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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.