Finding the Fourth Proportional to 278,567.70, 417,851.55 and 68,207.70
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Solution
The fourth proportional to 278,567.70, 417,851.55 and 68,207.70 is: 102,311.55
Step by Step Solution
- Step 1: Write the proportion equation
278,567.70 : 417,851.55 = 68,207.70 : x - Step 2: Convert to fraction form
278,567.70/417,851.55 = 68,207.70/x - Step 3: Cross multiply
278,567.70x = 417,851.55 × 68,207.70 - Step 4: Simplify right side
278,567.70x = 28,500,693,166.94 - Step 5: Solve for x
x = 28,500,693,166.94/278,567.70 - Step 6: Final answer
x = 102,311.55
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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.