Finding the Fourth Proportional to 256,647.60, 385,036.92 and 106,838.08
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Solution
The fourth proportional to 256,647.60, 385,036.92 and 106,838.08 is: 160,284.39
Step by Step Solution
- Step 1: Write the proportion equation
256,647.60 : 385,036.92 = 106,838.08 : x - Step 2: Convert to fraction form
256,647.60/385,036.92 = 106,838.08/x - Step 3: Cross multiply
256,647.60x = 385,036.92 × 106,838.08 - Step 4: Simplify right side
256,647.60x = 41,136,605,261.91 - Step 5: Solve for x
x = 41,136,605,261.91/256,647.60 - Step 6: Final answer
x = 160,284.39
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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.