Finding the Fourth Proportional to 281,178.19, 421,768.91 and 114,966.19
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Solution
The fourth proportional to 281,178.19, 421,768.91 and 114,966.19 is: 172,449.95
Step by Step Solution
- Step 1: Write the proportion equation
281,178.19 : 421,768.91 = 114,966.19 : x - Step 2: Convert to fraction form
281,178.19/421,768.91 = 114,966.19/x - Step 3: Cross multiply
281,178.19x = 421,768.91 × 114,966.19 - Step 4: Simplify right side
281,178.19x = 48,489,164,643.15 - Step 5: Solve for x
x = 48,489,164,643.15/281,178.19 - Step 6: Final answer
x = 172,449.95
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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.