Finding the Fourth Proportional to 421,117.44, 581,245.32 and 239,936.28
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Solution
The fourth proportional to 421,117.44, 581,245.32 and 239,936.28 is: 331,170.90
Step by Step Solution
- Step 1: Write the proportion equation
421,117.44 : 581,245.32 = 239,936.28 : x - Step 2: Convert to fraction form
421,117.44/581,245.32 = 239,936.28/x - Step 3: Cross multiply
421,117.44x = 581,245.32 × 239,936.28 - Step 4: Simplify right side
421,117.44x = 139,461,839,848.21 - Step 5: Solve for x
x = 139,461,839,848.21/421,117.44 - Step 6: Final answer
x = 331,170.90
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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.