Finding the Fourth Proportional to 395,400.60, 545,661.99 and 225,650.52
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Solution
The fourth proportional to 395,400.60, 545,661.99 and 225,650.52 is: 311,402.95
Step by Step Solution
- Step 1: Write the proportion equation
395,400.60 : 545,661.99 = 225,650.52 : x - Step 2: Convert to fraction form
395,400.60/545,661.99 = 225,650.52/x - Step 3: Cross multiply
395,400.60x = 545,661.99 × 225,650.52 - Step 4: Simplify right side
395,400.60x = 123,128,911,787.74 - Step 5: Solve for x
x = 123,128,911,787.74/395,400.60 - Step 6: Final answer
x = 311,402.95
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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.