Finding the Fourth Proportional to 230,704.98, 318,373.74 and 128,734.74
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Solution
The fourth proportional to 230,704.98, 318,373.74 and 128,734.74 is: 177,654.43
Step by Step Solution
- Step 1: Write the proportion equation
230,704.98 : 318,373.74 = 128,734.74 : x - Step 2: Convert to fraction form
230,704.98/318,373.74 = 128,734.74/x - Step 3: Cross multiply
230,704.98x = 318,373.74 × 128,734.74 - Step 4: Simplify right side
230,704.98x = 40,985,760,641.73 - Step 5: Solve for x
x = 40,985,760,641.73/230,704.98 - Step 6: Final answer
x = 177,654.43
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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.