Finding the Fourth Proportional to 310,639.69, 465,889.83 and 121,034.99
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Solution
The fourth proportional to 310,639.69, 465,889.83 and 121,034.99 is: 181,525.33
Step by Step Solution
- Step 1: Write the proportion equation
310,639.69 : 465,889.83 = 121,034.99 : x - Step 2: Convert to fraction form
310,639.69/465,889.83 = 121,034.99/x - Step 3: Cross multiply
310,639.69x = 465,889.83 × 121,034.99 - Step 4: Simplify right side
310,639.69x = 56,388,971,626.00 - Step 5: Solve for x
x = 56,388,971,626.00/310,639.69 - Step 6: Final answer
x = 181,525.33
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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.