Finding the Fourth Proportional to 285,847.12, 394,466.33 and 156,782.95
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Solution
The fourth proportional to 285,847.12, 394,466.33 and 156,782.95 is: 216,358.99
Step by Step Solution
- Step 1: Write the proportion equation
285,847.12 : 394,466.33 = 156,782.95 : x - Step 2: Convert to fraction form
285,847.12/394,466.33 = 156,782.95/x - Step 3: Cross multiply
285,847.12x = 394,466.33 × 156,782.95 - Step 4: Simplify right side
285,847.12x = 61,845,592,920.74 - Step 5: Solve for x
x = 61,845,592,920.74/285,847.12 - Step 6: Final answer
x = 216,358.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.