Finding the Fourth Proportional to 239,801.07, 331,052.37 and 154,966.53
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Solution
The fourth proportional to 239,801.07, 331,052.37 and 154,966.53 is: 213,935.81
Step by Step Solution
- Step 1: Write the proportion equation
239,801.07 : 331,052.37 = 154,966.53 : x - Step 2: Convert to fraction form
239,801.07/331,052.37 = 154,966.53/x - Step 3: Cross multiply
239,801.07x = 331,052.37 × 154,966.53 - Step 4: Simplify right side
239,801.07x = 51,302,037,027.18 - Step 5: Solve for x
x = 51,302,037,027.18/239,801.07 - Step 6: Final answer
x = 213,935.81
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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.