Finding the Fourth Proportional to 178,679.01, 246,412.47 and 121,404.08
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Solution
The fourth proportional to 178,679.01, 246,412.47 and 121,404.08 is: 167,425.81
Step by Step Solution
- Step 1: Write the proportion equation
178,679.01 : 246,412.47 = 121,404.08 : x - Step 2: Convert to fraction form
178,679.01/246,412.47 = 121,404.08/x - Step 3: Cross multiply
178,679.01x = 246,412.47 × 121,404.08 - Step 4: Simplify right side
178,679.01x = 29,915,477,988.82 - Step 5: Solve for x
x = 29,915,477,988.82/178,679.01 - Step 6: Final answer
x = 167,425.81
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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.