Finding the Fourth Proportional to 161,311.70, 241,967.55 and 91,327.70
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Solution
The fourth proportional to 161,311.70, 241,967.55 and 91,327.70 is: 136,991.55
Step by Step Solution
- Step 1: Write the proportion equation
161,311.70 : 241,967.55 = 91,327.70 : x - Step 2: Convert to fraction form
161,311.70/241,967.55 = 91,327.70/x - Step 3: Cross multiply
161,311.70x = 241,967.55 × 91,327.70 - Step 4: Simplify right side
161,311.70x = 22,098,339,816.14 - Step 5: Solve for x
x = 22,098,339,816.14/161,311.70 - Step 6: Final answer
x = 136,991.55
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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.