Finding the Fourth Proportional to 243,984.42, 336,706.11 and 136,554.21
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Solution
The fourth proportional to 243,984.42, 336,706.11 and 136,554.21 is: 188,449.07
Step by Step Solution
- Step 1: Write the proportion equation
243,984.42 : 336,706.11 = 136,554.21 : x - Step 2: Convert to fraction form
243,984.42/336,706.11 = 136,554.21/x - Step 3: Cross multiply
243,984.42x = 336,706.11 × 136,554.21 - Step 4: Simplify right side
243,984.42x = 45,978,636,853.22 - Step 5: Solve for x
x = 45,978,636,853.22/243,984.42 - Step 6: Final answer
x = 188,449.07
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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.