Finding the Fourth Proportional to 207,358.90, 310,455.14 and 186,363.70
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Solution
The fourth proportional to 207,358.90, 310,455.14 and 186,363.70 is: 279,021.39
Step by Step Solution
- Step 1: Write the proportion equation
207,358.90 : 310,455.14 = 186,363.70 : x - Step 2: Convert to fraction form
207,358.90/310,455.14 = 186,363.70/x - Step 3: Cross multiply
207,358.90x = 310,455.14 × 186,363.70 - Step 4: Simplify right side
207,358.90x = 57,857,568,574.42 - Step 5: Solve for x
x = 57,857,568,574.42/207,358.90 - Step 6: Final answer
x = 279,021.39
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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.