Finding the Fourth Proportional to 258,877.11, 387,754.80 and 125,478.32
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Solution
The fourth proportional to 258,877.11, 387,754.80 and 125,478.32 is: 187,945.62
Step by Step Solution
- Step 1: Write the proportion equation
258,877.11 : 387,754.80 = 125,478.32 : x - Step 2: Convert to fraction form
258,877.11/387,754.80 = 125,478.32/x - Step 3: Cross multiply
258,877.11x = 387,754.80 × 125,478.32 - Step 4: Simplify right side
258,877.11x = 48,654,818,466.62 - Step 5: Solve for x
x = 48,654,818,466.62/258,877.11 - Step 6: Final answer
x = 187,945.62
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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.