Finding the Fourth Proportional to 221,944.32, 306,283.68 and 121,348.80
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Solution
The fourth proportional to 221,944.32, 306,283.68 and 121,348.80 is: 167,461.63
Step by Step Solution
- Step 1: Write the proportion equation
221,944.32 : 306,283.68 = 121,348.80 : x - Step 2: Convert to fraction form
221,944.32/306,283.68 = 121,348.80/x - Step 3: Cross multiply
221,944.32x = 306,283.68 × 121,348.80 - Step 4: Simplify right side
221,944.32x = 37,167,157,027.58 - Step 5: Solve for x
x = 37,167,157,027.58/221,944.32 - Step 6: Final answer
x = 167,461.63
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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.