Finding the Fourth Proportional to 203,420.74, 280,737.18 and 112,805.08
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Solution
The fourth proportional to 203,420.74, 280,737.18 and 112,805.08 is: 155,680.19
Step by Step Solution
- Step 1: Write the proportion equation
203,420.74 : 280,737.18 = 112,805.08 : x - Step 2: Convert to fraction form
203,420.74/280,737.18 = 112,805.08/x - Step 3: Cross multiply
203,420.74x = 280,737.18 × 112,805.08 - Step 4: Simplify right side
203,420.74x = 31,668,580,048.87 - Step 5: Solve for x
x = 31,668,580,048.87/203,420.74 - Step 6: Final answer
x = 155,680.19
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.