Finding the Fourth Proportional to 221,784.95, 306,063.21 and 121,182.95
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Solution
The fourth proportional to 221,784.95, 306,063.21 and 121,182.95 is: 167,232.46
Step by Step Solution
- Step 1: Write the proportion equation
221,784.95 : 306,063.21 = 121,182.95 : x - Step 2: Convert to fraction form
221,784.95/306,063.21 = 121,182.95/x - Step 3: Cross multiply
221,784.95x = 306,063.21 × 121,182.95 - Step 4: Simplify right side
221,784.95x = 37,089,641,143.95 - Step 5: Solve for x
x = 37,089,641,143.95/221,784.95 - Step 6: Final answer
x = 167,232.46
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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.