Finding the Fourth Proportional to 421,295.87, 631,914.63 and 155,006.75
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Solution
The fourth proportional to 421,295.87, 631,914.63 and 155,006.75 is: 232,499.39
Step by Step Solution
- Step 1: Write the proportion equation
421,295.87 : 631,914.63 = 155,006.75 : x - Step 2: Convert to fraction form
421,295.87/631,914.63 = 155,006.75/x - Step 3: Cross multiply
421,295.87x = 631,914.63 × 155,006.75 - Step 4: Simplify right side
421,295.87x = 97,951,029,914.18 - Step 5: Solve for x
x = 97,951,029,914.18/421,295.87 - Step 6: Final answer
x = 232,499.39
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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.