Finding the Fourth Proportional to 388,461.29, 583,237.10 and 199,057.75
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Solution
The fourth proportional to 388,461.29, 583,237.10 and 199,057.75 is: 298,865.98
Step by Step Solution
- Step 1: Write the proportion equation
388,461.29 : 583,237.10 = 199,057.75 : x - Step 2: Convert to fraction form
388,461.29/583,237.10 = 199,057.75/x - Step 3: Cross multiply
388,461.29x = 583,237.10 × 199,057.75 - Step 4: Simplify right side
388,461.29x = 116,097,863,882.08 - Step 5: Solve for x
x = 116,097,863,882.08/388,461.29 - Step 6: Final answer
x = 298,865.98
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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.