Finding the Fourth Proportional to 347,041.36, 478,971.23 and 211,117.94
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Solution
The fourth proportional to 347,041.36, 478,971.23 and 211,117.94 is: 291,375.70
Step by Step Solution
- Step 1: Write the proportion equation
347,041.36 : 478,971.23 = 211,117.94 : x - Step 2: Convert to fraction form
347,041.36/478,971.23 = 211,117.94/x - Step 3: Cross multiply
347,041.36x = 478,971.23 × 211,117.94 - Step 4: Simplify right side
347,041.36x = 101,119,420,436.78 - Step 5: Solve for x
x = 101,119,420,436.78/347,041.36 - Step 6: Final answer
x = 291,375.70
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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.