Finding the Fourth Proportional to 395,811.12, 546,225.98 and 214,528.88
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Solution
The fourth proportional to 395,811.12, 546,225.98 and 214,528.88 is: 296,053.45
Step by Step Solution
- Step 1: Write the proportion equation
395,811.12 : 546,225.98 = 214,528.88 : x - Step 2: Convert to fraction form
395,811.12/546,225.98 = 214,528.88/x - Step 3: Cross multiply
395,811.12x = 546,225.98 × 214,528.88 - Step 4: Simplify right side
395,811.12x = 117,181,247,716.30 - Step 5: Solve for x
x = 117,181,247,716.30/395,811.12 - Step 6: Final answer
x = 296,053.45
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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.