Finding the Fourth Proportional to 258,828.79, 388,184.86 and 100,975.99
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Solution
The fourth proportional to 258,828.79, 388,184.86 and 100,975.99 is: 151,441.22
Step by Step Solution
- Step 1: Write the proportion equation
258,828.79 : 388,184.86 = 100,975.99 : x - Step 2: Convert to fraction form
258,828.79/388,184.86 = 100,975.99/x - Step 3: Cross multiply
258,828.79x = 388,184.86 × 100,975.99 - Step 4: Simplify right side
258,828.79x = 39,197,348,095.71 - Step 5: Solve for x
x = 39,197,348,095.71/258,828.79 - Step 6: Final answer
x = 151,441.22
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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.