Finding the Fourth Proportional to 213,571.68, 320,335.68 and 55,779.68
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Solution
The fourth proportional to 213,571.68, 320,335.68 and 55,779.68 is: 83,663.82
Step by Step Solution
- Step 1: Write the proportion equation
213,571.68 : 320,335.68 = 55,779.68 : x - Step 2: Convert to fraction form
213,571.68/320,335.68 = 55,779.68/x - Step 3: Cross multiply
213,571.68x = 320,335.68 × 55,779.68 - Step 4: Simplify right side
213,571.68x = 17,868,221,722.98 - Step 5: Solve for x
x = 17,868,221,722.98/213,571.68 - Step 6: Final answer
x = 83,663.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.