Finding the Fourth Proportional to 395,701.12, 546,055.68 and 225,902.08
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Solution
The fourth proportional to 395,701.12, 546,055.68 and 225,902.08 is: 311,738.10
Step by Step Solution
- Step 1: Write the proportion equation
395,701.12 : 546,055.68 = 225,902.08 : x - Step 2: Convert to fraction form
395,701.12/546,055.68 = 225,902.08/x - Step 3: Cross multiply
395,701.12x = 546,055.68 × 225,902.08 - Step 4: Simplify right side
395,701.12x = 123,355,113,907.81 - Step 5: Solve for x
x = 123,355,113,907.81/395,701.12 - Step 6: Final answer
x = 311,738.10
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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.