Finding the Fourth Proportional to 385,177.88, 531,543.66 and 215,412.68
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Solution
The fourth proportional to 385,177.88, 531,543.66 and 215,412.68 is: 297,268.48
Step by Step Solution
- Step 1: Write the proportion equation
385,177.88 : 531,543.66 = 215,412.68 : x - Step 2: Convert to fraction form
385,177.88/531,543.66 = 215,412.68/x - Step 3: Cross multiply
385,177.88x = 531,543.66 × 215,412.68 - Step 4: Simplify right side
385,177.88x = 114,501,244,337.61 - Step 5: Solve for x
x = 114,501,244,337.61/385,177.88 - Step 6: Final answer
x = 297,268.48
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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.