Finding the Fourth Proportional to 415,138.42, 572,873.26 and 231,367.19
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Solution
The fourth proportional to 415,138.42, 572,873.26 and 231,367.19 is: 319,276.82
Step by Step Solution
- Step 1: Write the proportion equation
415,138.42 : 572,873.26 = 231,367.19 : x - Step 2: Convert to fraction form
415,138.42/572,873.26 = 231,367.19/x - Step 3: Cross multiply
415,138.42x = 572,873.26 × 231,367.19 - Step 4: Simplify right side
415,138.42x = 132,544,072,371.14 - Step 5: Solve for x
x = 132,544,072,371.14/415,138.42 - Step 6: Final answer
x = 319,276.82
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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.