Finding the Fourth Proportional to 222,000.79, 306,354.86 and 121,396.63
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Solution
The fourth proportional to 222,000.79, 306,354.86 and 121,396.63 is: 167,523.94
Step by Step Solution
- Step 1: Write the proportion equation
222,000.79 : 306,354.86 = 121,396.63 : x - Step 2: Convert to fraction form
222,000.79/306,354.86 = 121,396.63/x - Step 3: Cross multiply
222,000.79x = 306,354.86 × 121,396.63 - Step 4: Simplify right side
222,000.79x = 37,190,447,588.12 - Step 5: Solve for x
x = 37,190,447,588.12/222,000.79 - Step 6: Final answer
x = 167,523.94
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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.