Finding the Fourth Proportional to 324,115.56, 486,225.18 and 137,128.68
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Solution
The fourth proportional to 324,115.56, 486,225.18 and 137,128.68 is: 205,714.95
Step by Step Solution
- Step 1: Write the proportion equation
324,115.56 : 486,225.18 = 137,128.68 : x - Step 2: Convert to fraction form
324,115.56/486,225.18 = 137,128.68/x - Step 3: Cross multiply
324,115.56x = 486,225.18 × 137,128.68 - Step 4: Simplify right side
324,115.56x = 66,675,417,116.16 - Step 5: Solve for x
x = 66,675,417,116.16/324,115.56 - Step 6: Final answer
x = 205,714.95
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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.