Finding the Fourth Proportional to 373,421.97, 515,244.99 and 218,343.42
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Solution
The fourth proportional to 373,421.97, 515,244.99 and 218,343.42 is: 301,268.70
Step by Step Solution
- Step 1: Write the proportion equation
373,421.97 : 515,244.99 = 218,343.42 : x - Step 2: Convert to fraction form
373,421.97/515,244.99 = 218,343.42/x - Step 3: Cross multiply
373,421.97x = 515,244.99 × 218,343.42 - Step 4: Simplify right side
373,421.97x = 112,500,353,254.47 - Step 5: Solve for x
x = 112,500,353,254.47/373,421.97 - Step 6: Final answer
x = 301,268.70
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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.