Finding the Fourth Proportional to 458,245.62, 687,402.15 and 121,283.99
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Solution
The fourth proportional to 458,245.62, 687,402.15 and 121,283.99 is: 181,934.90
Step by Step Solution
- Step 1: Write the proportion equation
458,245.62 : 687,402.15 = 121,283.99 : x - Step 2: Convert to fraction form
458,245.62/687,402.15 = 121,283.99/x - Step 3: Cross multiply
458,245.62x = 687,402.15 × 121,283.99 - Step 4: Simplify right side
458,245.62x = 83,370,872,049.57 - Step 5: Solve for x
x = 83,370,872,049.57/458,245.62 - Step 6: Final answer
x = 181,934.90
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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.