Finding the Fourth Proportional to 280,814.99, 421,296.26 and 100,918.58
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Solution
The fourth proportional to 280,814.99, 421,296.26 and 100,918.58 is: 151,404.38
Step by Step Solution
- Step 1: Write the proportion equation
280,814.99 : 421,296.26 = 100,918.58 : x - Step 2: Convert to fraction form
280,814.99/421,296.26 = 100,918.58/x - Step 3: Cross multiply
280,814.99x = 421,296.26 × 100,918.58 - Step 4: Simplify right side
280,814.99x = 42,516,617,707.44 - Step 5: Solve for x
x = 42,516,617,707.44/280,814.99 - Step 6: Final answer
x = 151,404.38
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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.