Finding the Fourth Proportional to 372,579.08, 558,431.21 and 172,476.78
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Solution
The fourth proportional to 372,579.08, 558,431.21 and 172,476.78 is: 258,512.68
Step by Step Solution
- Step 1: Write the proportion equation
372,579.08 : 558,431.21 = 172,476.78 : x - Step 2: Convert to fraction form
372,579.08/558,431.21 = 172,476.78/x - Step 3: Cross multiply
372,579.08x = 558,431.21 × 172,476.78 - Step 4: Simplify right side
372,579.08x = 96,316,415,289.38 - Step 5: Solve for x
x = 96,316,415,289.38/372,579.08 - Step 6: Final answer
x = 258,512.68
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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.