Finding the Fourth Proportional to 396,124.16, 546,721.20 and 235,067.99
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Solution
The fourth proportional to 396,124.16, 546,721.20 and 235,067.99 is: 324,435.28
Step by Step Solution
- Step 1: Write the proportion equation
396,124.16 : 546,721.20 = 235,067.99 : x - Step 2: Convert to fraction form
396,124.16/546,721.20 = 235,067.99/x - Step 3: Cross multiply
396,124.16x = 546,721.20 × 235,067.99 - Step 4: Simplify right side
396,124.16x = 128,516,650,840.78 - Step 5: Solve for x
x = 128,516,650,840.78/396,124.16 - Step 6: Final answer
x = 324,435.28
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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.