Finding the Fourth Proportional to 402,249.99, 555,108.56 and 220,965.60
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Solution
The fourth proportional to 402,249.99, 555,108.56 and 220,965.60 is: 304,934.49
Step by Step Solution
- Step 1: Write the proportion equation
402,249.99 : 555,108.56 = 220,965.60 : x - Step 2: Convert to fraction form
402,249.99/555,108.56 = 220,965.60/x - Step 3: Cross multiply
402,249.99x = 555,108.56 × 220,965.60 - Step 4: Simplify right side
402,249.99x = 122,659,896,025.54 - Step 5: Solve for x
x = 122,659,896,025.54/402,249.99 - Step 6: Final answer
x = 304,934.49
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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.