Finding the Fourth Proportional to 509,981.80, 764,972.70 and 177,557.80
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Solution
The fourth proportional to 509,981.80, 764,972.70 and 177,557.80 is: 266,336.70
Step by Step Solution
- Step 1: Write the proportion equation
509,981.80 : 764,972.70 = 177,557.80 : x - Step 2: Convert to fraction form
509,981.80/764,972.70 = 177,557.80/x - Step 3: Cross multiply
509,981.80x = 764,972.70 × 177,557.80 - Step 4: Simplify right side
509,981.80x = 135,826,869,672.06 - Step 5: Solve for x
x = 135,826,869,672.06/509,981.80 - Step 6: Final answer
x = 266,336.70
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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.