Finding the Fourth Proportional to 286,330.32, 395,193.87 and 165,476.70
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Solution
The fourth proportional to 286,330.32, 395,193.87 and 165,476.70 is: 228,391.38
Step by Step Solution
- Step 1: Write the proportion equation
286,330.32 : 395,193.87 = 165,476.70 : x - Step 2: Convert to fraction form
286,330.32/395,193.87 = 165,476.70/x - Step 3: Cross multiply
286,330.32x = 395,193.87 × 165,476.70 - Step 4: Simplify right side
286,330.32x = 65,395,377,467.83 - Step 5: Solve for x
x = 65,395,377,467.83/286,330.32 - Step 6: Final answer
x = 228,391.38
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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.