Finding the Fourth Proportional to 421,662.24, 632,493.41 and 122,142.96
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Solution
The fourth proportional to 421,662.24, 632,493.41 and 122,142.96 is: 183,214.45
Step by Step Solution
- Step 1: Write the proportion equation
421,662.24 : 632,493.41 = 122,142.96 : x - Step 2: Convert to fraction form
421,662.24/632,493.41 = 122,142.96/x - Step 3: Cross multiply
421,662.24x = 632,493.41 × 122,142.96 - Step 4: Simplify right side
421,662.24x = 77,254,616,667.18 - Step 5: Solve for x
x = 77,254,616,667.18/421,662.24 - Step 6: Final answer
x = 183,214.45
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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.