Finding the Fourth Proportional to 242,728.14, 334,976.17 and 135,298.95
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Solution
The fourth proportional to 242,728.14, 334,976.17 and 135,298.95 is: 186,718.87
Step by Step Solution
- Step 1: Write the proportion equation
242,728.14 : 334,976.17 = 135,298.95 : x - Step 2: Convert to fraction form
242,728.14/334,976.17 = 135,298.95/x - Step 3: Cross multiply
242,728.14x = 334,976.17 × 135,298.95 - Step 4: Simplify right side
242,728.14x = 45,321,924,076.02 - Step 5: Solve for x
x = 45,321,924,076.02/242,728.14 - Step 6: Final answer
x = 186,718.87
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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.