Finding the Fourth Proportional to 221,303.76, 331,955.82 and 94,861.94
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Solution
The fourth proportional to 221,303.76, 331,955.82 and 94,861.94 is: 142,292.99
Step by Step Solution
- Step 1: Write the proportion equation
221,303.76 : 331,955.82 = 94,861.94 : x - Step 2: Convert to fraction form
221,303.76/331,955.82 = 94,861.94/x - Step 3: Cross multiply
221,303.76x = 331,955.82 × 94,861.94 - Step 4: Simplify right side
221,303.76x = 31,489,973,079.49 - Step 5: Solve for x
x = 31,489,973,079.49/221,303.76 - Step 6: Final answer
x = 142,292.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.