Finding the Fourth Proportional to 321,151.16, 479,773.37 and 207,908.84
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Solution
The fourth proportional to 321,151.16, 479,773.37 and 207,908.84 is: 310,598.68
Step by Step Solution
- Step 1: Write the proportion equation
321,151.16 : 479,773.37 = 207,908.84 : x - Step 2: Convert to fraction form
321,151.16/479,773.37 = 207,908.84/x - Step 3: Cross multiply
321,151.16x = 479,773.37 × 207,908.84 - Step 4: Simplify right side
321,151.16x = 99,749,124,819.59 - Step 5: Solve for x
x = 99,749,124,819.59/321,151.16 - Step 6: Final answer
x = 310,598.68
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.