Finding the Fourth Proportional to 388,259.40, 582,529.26 and 135,577.14
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Solution
The fourth proportional to 388,259.40, 582,529.26 and 135,577.14 is: 203,414.65
Step by Step Solution
- Step 1: Write the proportion equation
388,259.40 : 582,529.26 = 135,577.14 : x - Step 2: Convert to fraction form
388,259.40/582,529.26 = 135,577.14/x - Step 3: Cross multiply
388,259.40x = 582,529.26 × 135,577.14 - Step 4: Simplify right side
388,259.40x = 78,977,651,037.12 - Step 5: Solve for x
x = 78,977,651,037.12/388,259.40 - Step 6: Final answer
x = 203,414.65
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.