Finding the Fourth Proportional to 379,130.47, 523,352.73 and 258,393.79
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Solution
The fourth proportional to 379,130.47, 523,352.73 and 258,393.79 is: 356,687.49
Step by Step Solution
- Step 1: Write the proportion equation
379,130.47 : 523,352.73 = 258,393.79 : x - Step 2: Convert to fraction form
379,130.47/523,352.73 = 258,393.79/x - Step 3: Cross multiply
379,130.47x = 523,352.73 × 258,393.79 - Step 4: Simplify right side
379,130.47x = 135,231,095,411.55 - Step 5: Solve for x
x = 135,231,095,411.55/379,130.47 - Step 6: Final answer
x = 356,687.49
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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.