Finding the Fourth Proportional to 389,108.20, 583,680.19 and 119,217.01
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Solution
The fourth proportional to 389,108.20, 583,680.19 and 119,217.01 is: 178,830.99
Step by Step Solution
- Step 1: Write the proportion equation
389,108.20 : 583,680.19 = 119,217.01 : x - Step 2: Convert to fraction form
389,108.20/583,680.19 = 119,217.01/x - Step 3: Cross multiply
389,108.20x = 583,680.19 × 119,217.01 - Step 4: Simplify right side
389,108.20x = 69,584,604,129.63 - Step 5: Solve for x
x = 69,584,604,129.63/389,108.20 - Step 6: Final answer
x = 178,830.99
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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.