Finding the Fourth Proportional to 261,789.21, 361,259.44 and 159,984.99
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Solution
The fourth proportional to 261,789.21, 361,259.44 and 159,984.99 is: 220,773.38
Step by Step Solution
- Step 1: Write the proportion equation
261,789.21 : 361,259.44 = 159,984.99 : x - Step 2: Convert to fraction form
261,789.21/361,259.44 = 159,984.99/x - Step 3: Cross multiply
261,789.21x = 361,259.44 × 159,984.99 - Step 4: Simplify right side
261,789.21x = 57,796,087,895.81 - Step 5: Solve for x
x = 57,796,087,895.81/261,789.21 - Step 6: Final answer
x = 220,773.38
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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.