Finding the Fourth Proportional to 181,840.80, 272,113.20 and 115,312.80
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Solution
The fourth proportional to 181,840.80, 272,113.20 and 115,312.80 is: 172,558.28
Step by Step Solution
- Step 1: Write the proportion equation
181,840.80 : 272,113.20 = 115,312.80 : x - Step 2: Convert to fraction form
181,840.80/272,113.20 = 115,312.80/x - Step 3: Cross multiply
181,840.80x = 272,113.20 × 115,312.80 - Step 4: Simplify right side
181,840.80x = 31,378,135,008.96 - Step 5: Solve for x
x = 31,378,135,008.96/181,840.80 - Step 6: Final answer
x = 172,558.28
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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.