Finding the Fourth Proportional to 257,792.66, 386,231.47 and 107,702.63
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Solution
The fourth proportional to 257,792.66, 386,231.47 and 107,702.63 is: 161,362.80
Step by Step Solution
- Step 1: Write the proportion equation
257,792.66 : 386,231.47 = 107,702.63 : x - Step 2: Convert to fraction form
257,792.66/386,231.47 = 107,702.63/x - Step 3: Cross multiply
257,792.66x = 386,231.47 × 107,702.63 - Step 4: Simplify right side
257,792.66x = 41,598,145,107.77 - Step 5: Solve for x
x = 41,598,145,107.77/257,792.66 - Step 6: Final answer
x = 161,362.80
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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.