Finding the Fourth Proportional to 278,028.34, 416,792.82 and 135,793.15
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Solution
The fourth proportional to 278,028.34, 416,792.82 and 135,793.15 is: 203,567.77
Step by Step Solution
- Step 1: Write the proportion equation
278,028.34 : 416,792.82 = 135,793.15 : x - Step 2: Convert to fraction form
278,028.34/416,792.82 = 135,793.15/x - Step 3: Cross multiply
278,028.34x = 416,792.82 × 135,793.15 - Step 4: Simplify right side
278,028.34x = 56,597,609,925.18 - Step 5: Solve for x
x = 56,597,609,925.18/278,028.34 - Step 6: Final answer
x = 203,567.77
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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.