Finding the Fourth Proportional to 292,379.12, 403,482.96 and 158,243.12
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Solution
The fourth proportional to 292,379.12, 403,482.96 and 158,243.12 is: 218,375.38
Step by Step Solution
- Step 1: Write the proportion equation
292,379.12 : 403,482.96 = 158,243.12 : x - Step 2: Convert to fraction form
292,379.12/403,482.96 = 158,243.12/x - Step 3: Cross multiply
292,379.12x = 403,482.96 × 158,243.12 - Step 4: Simplify right side
292,379.12x = 63,848,402,457.24 - Step 5: Solve for x
x = 63,848,402,457.24/292,379.12 - Step 6: Final answer
x = 218,375.38
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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.