Finding the Fourth Proportional to 320,482.70, 442,258.58 and 177,239.66
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Solution
The fourth proportional to 320,482.70, 442,258.58 and 177,239.66 is: 244,586.56
Step by Step Solution
- Step 1: Write the proportion equation
320,482.70 : 442,258.58 = 177,239.66 : x - Step 2: Convert to fraction form
320,482.70/442,258.58 = 177,239.66/x - Step 3: Cross multiply
320,482.70x = 442,258.58 × 177,239.66 - Step 4: Simplify right side
320,482.70x = 78,385,760,351.28 - Step 5: Solve for x
x = 78,385,760,351.28/320,482.70 - Step 6: Final answer
x = 244,586.56
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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.