Finding the Fourth Proportional to 280,122.54, 420,183.57 and 102,643.44
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Solution
The fourth proportional to 280,122.54, 420,183.57 and 102,643.44 is: 153,965.07
Step by Step Solution
- Step 1: Write the proportion equation
280,122.54 : 420,183.57 = 102,643.44 : x - Step 2: Convert to fraction form
280,122.54/420,183.57 = 102,643.44/x - Step 3: Cross multiply
280,122.54x = 420,183.57 × 102,643.44 - Step 4: Simplify right side
280,122.54x = 43,129,087,056.28 - Step 5: Solve for x
x = 43,129,087,056.28/280,122.54 - Step 6: Final answer
x = 153,965.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.