Finding the Fourth Proportional to 257,079.23, 385,697.61 and 115,044.06
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Solution
The fourth proportional to 257,079.23, 385,697.61 and 115,044.06 is: 172,601.34
Step by Step Solution
- Step 1: Write the proportion equation
257,079.23 : 385,697.61 = 115,044.06 : x - Step 2: Convert to fraction form
257,079.23/385,697.61 = 115,044.06/x - Step 3: Cross multiply
257,079.23x = 385,697.61 × 115,044.06 - Step 4: Simplify right side
257,079.23x = 44,372,218,986.70 - Step 5: Solve for x
x = 44,372,218,986.70/257,079.23 - Step 6: Final answer
x = 172,601.34
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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.