Finding the Fourth Proportional to 213,573.68, 320,338.68 and 55,781.68
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Solution
The fourth proportional to 213,573.68, 320,338.68 and 55,781.68 is: 83,666.82
Step by Step Solution
- Step 1: Write the proportion equation
213,573.68 : 320,338.68 = 55,781.68 : x - Step 2: Convert to fraction form
213,573.68/320,338.68 = 55,781.68/x - Step 3: Cross multiply
213,573.68x = 320,338.68 × 55,781.68 - Step 4: Simplify right side
213,573.68x = 17,869,029,739.38 - Step 5: Solve for x
x = 17,869,029,739.38/213,573.68 - Step 6: Final answer
x = 83,666.82
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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.