Finding the Fourth Proportional to 163,487.70, 245,231.55 and 121,497.30
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Solution
The fourth proportional to 163,487.70, 245,231.55 and 121,497.30 is: 182,245.95
Step by Step Solution
- Step 1: Write the proportion equation
163,487.70 : 245,231.55 = 121,497.30 : x - Step 2: Convert to fraction form
163,487.70/245,231.55 = 121,497.30/x - Step 3: Cross multiply
163,487.70x = 245,231.55 × 121,497.30 - Step 4: Simplify right side
163,487.70x = 29,794,971,199.82 - Step 5: Solve for x
x = 29,794,971,199.82/163,487.70 - Step 6: Final answer
x = 182,245.95
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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.