Finding the Fourth Proportional to 310,260.24, 428,133.96 and 174,286.80
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Solution
The fourth proportional to 310,260.24, 428,133.96 and 174,286.80 is: 240,501.64
Step by Step Solution
- Step 1: Write the proportion equation
310,260.24 : 428,133.96 = 174,286.80 : x - Step 2: Convert to fraction form
310,260.24/428,133.96 = 174,286.80/x - Step 3: Cross multiply
310,260.24x = 428,133.96 × 174,286.80 - Step 4: Simplify right side
310,260.24x = 74,618,097,859.73 - Step 5: Solve for x
x = 74,618,097,859.73/310,260.24 - Step 6: Final answer
x = 240,501.64
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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.