Finding the Fourth Proportional to 407,621.80, 611,432.70 and 112,133.80
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Solution
The fourth proportional to 407,621.80, 611,432.70 and 112,133.80 is: 168,200.70
Step by Step Solution
- Step 1: Write the proportion equation
407,621.80 : 611,432.70 = 112,133.80 : x - Step 2: Convert to fraction form
407,621.80/611,432.70 = 112,133.80/x - Step 3: Cross multiply
407,621.80x = 611,432.70 × 112,133.80 - Step 4: Simplify right side
407,621.80x = 68,562,272,095.26 - Step 5: Solve for x
x = 68,562,272,095.26/407,621.80 - Step 6: Final answer
x = 168,200.70
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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.