Finding the Fourth Proportional to 189,259.62, 283,965.17 and 76,948.47
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Solution
The fourth proportional to 189,259.62, 283,965.17 and 76,948.47 is: 115,453.50
Step by Step Solution
- Step 1: Write the proportion equation
189,259.62 : 283,965.17 = 76,948.47 : x - Step 2: Convert to fraction form
189,259.62/283,965.17 = 76,948.47/x - Step 3: Cross multiply
189,259.62x = 283,965.17 × 76,948.47 - Step 4: Simplify right side
189,259.62x = 21,850,684,980.05 - Step 5: Solve for x
x = 21,850,684,980.05/189,259.62 - Step 6: Final answer
x = 115,453.50
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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.