Finding the Fourth Proportional to 324,112.56, 486,220.80 and 137,125.68
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Solution
The fourth proportional to 324,112.56, 486,220.80 and 137,125.68 is: 205,710.50
Step by Step Solution
- Step 1: Write the proportion equation
324,112.56 : 486,220.80 = 137,125.68 : x - Step 2: Convert to fraction form
324,112.56/486,220.80 = 137,125.68/x - Step 3: Cross multiply
324,112.56x = 486,220.80 × 137,125.68 - Step 4: Simplify right side
324,112.56x = 66,673,357,830.14 - Step 5: Solve for x
x = 66,673,357,830.14/324,112.56 - Step 6: Final answer
x = 205,710.50
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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.