Finding the Fourth Proportional to 222,392.18, 306,900.74 and 120,417.74
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Solution
The fourth proportional to 222,392.18, 306,900.74 and 120,417.74 is: 166,176.23
Step by Step Solution
- Step 1: Write the proportion equation
222,392.18 : 306,900.74 = 120,417.74 : x - Step 2: Convert to fraction form
222,392.18/306,900.74 = 120,417.74/x - Step 3: Cross multiply
222,392.18x = 306,900.74 × 120,417.74 - Step 4: Simplify right side
222,392.18x = 36,956,293,515.13 - Step 5: Solve for x
x = 36,956,293,515.13/222,392.18 - Step 6: Final answer
x = 166,176.23
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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.