Finding the Fourth Proportional to 395,398.14, 545,656.95 and 216,550.14
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Solution
The fourth proportional to 395,398.14, 545,656.95 and 216,550.14 is: 298,843.31
Step by Step Solution
- Step 1: Write the proportion equation
395,398.14 : 545,656.95 = 216,550.14 : x - Step 2: Convert to fraction form
395,398.14/545,656.95 = 216,550.14/x - Step 3: Cross multiply
395,398.14x = 545,656.95 × 216,550.14 - Step 4: Simplify right side
395,398.14x = 118,162,088,914.47 - Step 5: Solve for x
x = 118,162,088,914.47/395,398.14 - Step 6: Final answer
x = 298,843.31
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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.