Finding the Fourth Proportional to 395,285.88, 545,493.84 and 213,997.74
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Solution
The fourth proportional to 395,285.88, 545,493.84 and 213,997.74 is: 295,316.52
Step by Step Solution
- Step 1: Write the proportion equation
395,285.88 : 545,493.84 = 213,997.74 : x - Step 2: Convert to fraction form
395,285.88/545,493.84 = 213,997.74/x - Step 3: Cross multiply
395,285.88x = 545,493.84 × 213,997.74 - Step 4: Simplify right side
395,285.88x = 116,734,448,943.92 - Step 5: Solve for x
x = 116,734,448,943.92/395,285.88 - Step 6: Final answer
x = 295,316.52
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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.