Finding the Fourth Proportional to 395,702.12, 546,057.06 and 225,903.08
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Solution
The fourth proportional to 395,702.12, 546,057.06 and 225,903.08 is: 311,739.48
Step by Step Solution
- Step 1: Write the proportion equation
395,702.12 : 546,057.06 = 225,903.08 : x - Step 2: Convert to fraction form
395,702.12/546,057.06 = 225,903.08/x - Step 3: Cross multiply
395,702.12x = 546,057.06 × 225,903.08 - Step 4: Simplify right side
395,702.12x = 123,355,971,709.75 - Step 5: Solve for x
x = 123,355,971,709.75/395,702.12 - Step 6: Final answer
x = 311,739.48
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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.