Finding the Fourth Proportional to 346,379.70, 478,112.85 and 203,197.62
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Solution
The fourth proportional to 346,379.70, 478,112.85 and 203,197.62 is: 280,476.58
Step by Step Solution
- Step 1: Write the proportion equation
346,379.70 : 478,112.85 = 203,197.62 : x - Step 2: Convert to fraction form
346,379.70/478,112.85 = 203,197.62/x - Step 3: Cross multiply
346,379.70x = 478,112.85 × 203,197.62 - Step 4: Simplify right side
346,379.70x = 97,151,393,211.42 - Step 5: Solve for x
x = 97,151,393,211.42/346,379.70 - Step 6: Final answer
x = 280,476.58
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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.