Finding the Fourth Proportional to 221,143.04, 331,437.44 and 157,863.68
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Solution
The fourth proportional to 221,143.04, 331,437.44 and 157,863.68 is: 236,597.70
Step by Step Solution
- Step 1: Write the proportion equation
221,143.04 : 331,437.44 = 157,863.68 : x - Step 2: Convert to fraction form
221,143.04/331,437.44 = 157,863.68/x - Step 3: Cross multiply
221,143.04x = 331,437.44 × 157,863.68 - Step 4: Simplify right side
221,143.04x = 52,321,933,968.18 - Step 5: Solve for x
x = 52,321,933,968.18/221,143.04 - Step 6: Final answer
x = 236,597.70
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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.