Finding the Fourth Proportional to 280,468.93, 420,887.67 and 102,977.68
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Solution
The fourth proportional to 280,468.93, 420,887.67 and 102,977.68 is: 154,534.18
Step by Step Solution
- Step 1: Write the proportion equation
280,468.93 : 420,887.67 = 102,977.68 : x - Step 2: Convert to fraction form
280,468.93/420,887.67 = 102,977.68/x - Step 3: Cross multiply
280,468.93x = 420,887.67 × 102,977.68 - Step 4: Simplify right side
280,468.93x = 43,342,035,797.21 - Step 5: Solve for x
x = 43,342,035,797.21/280,468.93 - Step 6: Final answer
x = 154,534.18
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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.