Finding the Fourth Proportional to 258,342.84, 387,153.39 and 125,187.75
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Solution
The fourth proportional to 258,342.84, 387,153.39 and 125,187.75 is: 187,606.75
Step by Step Solution
- Step 1: Write the proportion equation
258,342.84 : 387,153.39 = 125,187.75 : x - Step 2: Convert to fraction form
258,342.84/387,153.39 = 125,187.75/x - Step 3: Cross multiply
258,342.84x = 387,153.39 × 125,187.75 - Step 4: Simplify right side
258,342.84x = 48,466,861,798.97 - Step 5: Solve for x
x = 48,466,861,798.97/258,342.84 - Step 6: Final answer
x = 187,606.75
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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.