Finding the Fourth Proportional to 292,715.75, 403,948.14 and 158,579.75
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Solution
The fourth proportional to 292,715.75, 403,948.14 and 158,579.75 is: 218,840.27
Step by Step Solution
- Step 1: Write the proportion equation
292,715.75 : 403,948.14 = 158,579.75 : x - Step 2: Convert to fraction form
292,715.75/403,948.14 = 158,579.75/x - Step 3: Cross multiply
292,715.75x = 403,948.14 × 158,579.75 - Step 4: Simplify right side
292,715.75x = 64,057,995,054.17 - Step 5: Solve for x
x = 64,057,995,054.17/292,715.75 - Step 6: Final answer
x = 218,840.27
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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.