Finding the Fourth Proportional to 438,319.08, 657,497.34 and 172,137.29
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Solution
The fourth proportional to 438,319.08, 657,497.34 and 172,137.29 is: 258,213.28
Step by Step Solution
- Step 1: Write the proportion equation
438,319.08 : 657,497.34 = 172,137.29 : x - Step 2: Convert to fraction form
438,319.08/657,497.34 = 172,137.29/x - Step 3: Cross multiply
438,319.08x = 657,497.34 × 172,137.29 - Step 4: Simplify right side
438,319.08x = 113,179,807,002.32 - Step 5: Solve for x
x = 113,179,807,002.32/438,319.08 - Step 6: Final answer
x = 258,213.28
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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.