Finding the Fourth Proportional to 161,778.13, 242,313.63 and 133,379.13
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Solution
The fourth proportional to 161,778.13, 242,313.63 and 133,379.13 is: 199,777.20
Step by Step Solution
- Step 1: Write the proportion equation
161,778.13 : 242,313.63 = 133,379.13 : x - Step 2: Convert to fraction form
161,778.13/242,313.63 = 133,379.13/x - Step 3: Cross multiply
161,778.13x = 242,313.63 × 133,379.13 - Step 4: Simplify right side
161,778.13x = 32,319,581,156.54 - Step 5: Solve for x
x = 32,319,581,156.54/161,778.13 - Step 6: Final answer
x = 199,777.20
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1.5x scale
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.