Finding the Fourth Proportional to 388,843.10, 583,209.15 and 122,568.96
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Solution
The fourth proportional to 388,843.10, 583,209.15 and 122,568.96 is: 183,835.95
Step by Step Solution
- Step 1: Write the proportion equation
388,843.10 : 583,209.15 = 122,568.96 : x - Step 2: Convert to fraction form
388,843.10/583,209.15 = 122,568.96/x - Step 3: Cross multiply
388,843.10x = 583,209.15 × 122,568.96 - Step 4: Simplify right side
388,843.10x = 71,483,338,977.98 - Step 5: Solve for x
x = 71,483,338,977.98/388,843.10 - Step 6: Final answer
x = 183,835.95
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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.