Finding the Fourth Proportional to 753,154.12, 1,129,730.95 and 220,675
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Solution
The fourth proportional to 753,154.12, 1,129,730.95 and 220,675 is: 331,012.43
Step by Step Solution
- Step 1: Write the proportion equation
753,154.12 : 1,129,730.95 = 220,675 : x - Step 2: Convert to fraction form
753,154.12/1,129,730.95 = 220,675/x - Step 3: Cross multiply
753,154.12x = 1,129,730.95 × 220,675 - Step 4: Simplify right side
753,154.12x = 249,303,377,391.25 - Step 5: Solve for x
x = 249,303,377,391.25/753,154.12 - Step 6: Final answer
x = 331,012.43
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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.