Finding the Fourth Proportional to 412,599.74, 618,905.07 and 132,116.99
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Solution
The fourth proportional to 412,599.74, 618,905.07 and 132,116.99 is: 198,177.23
Step by Step Solution
- Step 1: Write the proportion equation
412,599.74 : 618,905.07 = 132,116.99 : x - Step 2: Convert to fraction form
412,599.74/618,905.07 = 132,116.99/x - Step 3: Cross multiply
412,599.74x = 618,905.07 × 132,116.99 - Step 4: Simplify right side
412,599.74x = 81,767,871,849.61 - Step 5: Solve for x
x = 81,767,871,849.61/412,599.74 - Step 6: Final answer
x = 198,177.23
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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.