Finding the Fourth Proportional to 222,154.21, 306,565.18 and 126,691.63
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Solution
The fourth proportional to 222,154.21, 306,565.18 and 126,691.63 is: 174,830.10
Step by Step Solution
- Step 1: Write the proportion equation
222,154.21 : 306,565.18 = 126,691.63 : x - Step 2: Convert to fraction form
222,154.21/306,565.18 = 126,691.63/x - Step 3: Cross multiply
222,154.21x = 306,565.18 × 126,691.63 - Step 4: Simplify right side
222,154.21x = 38,839,242,355.44 - Step 5: Solve for x
x = 38,839,242,355.44/222,154.21 - Step 6: Final answer
x = 174,830.10
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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.