Finding the Fourth Proportional to 203,792.80, 305,688.96 and 133,655.70
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Solution
The fourth proportional to 203,792.80, 305,688.96 and 133,655.70 is: 200,483.39
Step by Step Solution
- Step 1: Write the proportion equation
203,792.80 : 305,688.96 = 133,655.70 : x - Step 2: Convert to fraction form
203,792.80/305,688.96 = 133,655.70/x - Step 3: Cross multiply
203,792.80x = 305,688.96 × 133,655.70 - Step 4: Simplify right side
203,792.80x = 40,857,071,931.07 - Step 5: Solve for x
x = 40,857,071,931.07/203,792.80 - Step 6: Final answer
x = 200,483.39
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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.