Finding the Fourth Proportional to 217,338.22, 299,941.14 and 121,851.10
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Solution
The fourth proportional to 217,338.22, 299,941.14 and 121,851.10 is: 168,162.59
Step by Step Solution
- Step 1: Write the proportion equation
217,338.22 : 299,941.14 = 121,851.10 : x - Step 2: Convert to fraction form
217,338.22/299,941.14 = 121,851.10/x - Step 3: Cross multiply
217,338.22x = 299,941.14 × 121,851.10 - Step 4: Simplify right side
217,338.22x = 36,548,157,844.25 - Step 5: Solve for x
x = 36,548,157,844.25/217,338.22 - Step 6: Final answer
x = 168,162.59
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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.