Finding the Fourth Proportional to 399,041.82, 597,609.36 and 221,107.50
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Solution
The fourth proportional to 399,041.82, 597,609.36 and 221,107.50 is: 331,132.99
Step by Step Solution
- Step 1: Write the proportion equation
399,041.82 : 597,609.36 = 221,107.50 : x - Step 2: Convert to fraction form
399,041.82/597,609.36 = 221,107.50/x - Step 3: Cross multiply
399,041.82x = 597,609.36 × 221,107.50 - Step 4: Simplify right side
399,041.82x = 132,135,911,566.20 - Step 5: Solve for x
x = 132,135,911,566.20/399,041.82 - Step 6: Final answer
x = 331,132.99
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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.