Finding the Fourth Proportional to 310,055.81, 427,583.08 and 202,717.85
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Solution
The fourth proportional to 310,055.81, 427,583.08 and 202,717.85 is: 279,558.45
Step by Step Solution
- Step 1: Write the proportion equation
310,055.81 : 427,583.08 = 202,717.85 : x - Step 2: Convert to fraction form
310,055.81/427,583.08 = 202,717.85/x - Step 3: Cross multiply
310,055.81x = 427,583.08 × 202,717.85 - Step 4: Simplify right side
310,055.81x = 86,678,722,673.98 - Step 5: Solve for x
x = 86,678,722,673.98/310,055.81 - Step 6: Final answer
x = 279,558.45
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1.5x scale
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.