Finding the Fourth Proportional to 371,163.20, 556,739.91 and 90,682.88
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Solution
The fourth proportional to 371,163.20, 556,739.91 and 90,682.88 is: 136,023.12
Step by Step Solution
- Step 1: Write the proportion equation
371,163.20 : 556,739.91 = 90,682.88 : x - Step 2: Convert to fraction form
371,163.20/556,739.91 = 90,682.88/x - Step 3: Cross multiply
371,163.20x = 556,739.91 × 90,682.88 - Step 4: Simplify right side
371,163.20x = 50,486,775,666.04 - Step 5: Solve for x
x = 50,486,775,666.04/371,163.20 - Step 6: Final answer
x = 136,023.12
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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.