Finding the Fourth Proportional to 186,787.08, 257,821.38 and 130,216.68
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Solution
The fourth proportional to 186,787.08, 257,821.38 and 130,216.68 is: 179,737.51
Step by Step Solution
- Step 1: Write the proportion equation
186,787.08 : 257,821.38 = 130,216.68 : x - Step 2: Convert to fraction form
186,787.08/257,821.38 = 130,216.68/x - Step 3: Cross multiply
186,787.08x = 257,821.38 × 130,216.68 - Step 4: Simplify right side
186,787.08x = 33,572,644,136.62 - Step 5: Solve for x
x = 33,572,644,136.62/186,787.08 - Step 6: Final answer
x = 179,737.51
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.