Finding the Fourth Proportional to 207,787.84, 286,889.52 and 132,438.40
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Solution
The fourth proportional to 207,787.84, 286,889.52 and 132,438.40 is: 182,855.69
Step by Step Solution
- Step 1: Write the proportion equation
207,787.84 : 286,889.52 = 132,438.40 : x - Step 2: Convert to fraction form
207,787.84/286,889.52 = 132,438.40/x - Step 3: Cross multiply
207,787.84x = 286,889.52 × 132,438.40 - Step 4: Simplify right side
207,787.84x = 37,995,189,005.57 - Step 5: Solve for x
x = 37,995,189,005.57/207,787.84 - Step 6: Final answer
x = 182,855.69
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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.