Finding the Fourth Proportional to 407,722.08, 611,340.84 and 155,021.07
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Solution
The fourth proportional to 407,722.08, 611,340.84 and 155,021.07 is: 232,439.49
Step by Step Solution
- Step 1: Write the proportion equation
407,722.08 : 611,340.84 = 155,021.07 : x - Step 2: Convert to fraction form
407,722.08/611,340.84 = 155,021.07/x - Step 3: Cross multiply
407,722.08x = 611,340.84 × 155,021.07 - Step 4: Simplify right side
407,722.08x = 94,770,711,151.50 - Step 5: Solve for x
x = 94,770,711,151.50/407,722.08 - Step 6: Final answer
x = 232,439.49
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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.