Finding the Fourth Proportional to 421,190.56, 581,175.76 and 239,906.02
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Solution
The fourth proportional to 421,190.56, 581,175.76 and 239,906.02 is: 331,032.02
Step by Step Solution
- Step 1: Write the proportion equation
421,190.56 : 581,175.76 = 239,906.02 : x - Step 2: Convert to fraction form
421,190.56/581,175.76 = 239,906.02/x - Step 3: Cross multiply
421,190.56x = 581,175.76 × 239,906.02 - Step 4: Simplify right side
421,190.56x = 139,427,563,502.08 - Step 5: Solve for x
x = 139,427,563,502.08/421,190.56 - Step 6: Final answer
x = 331,032.02
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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.