Finding the Fourth Proportional to 357,394.85, 534,752.33 and 212,771.68
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Solution
The fourth proportional to 357,394.85, 534,752.33 and 212,771.68 is: 318,359.80
Step by Step Solution
- Step 1: Write the proportion equation
357,394.85 : 534,752.33 = 212,771.68 : x - Step 2: Convert to fraction form
357,394.85/534,752.33 = 212,771.68/x - Step 3: Cross multiply
357,394.85x = 534,752.33 × 212,771.68 - Step 4: Simplify right side
357,394.85x = 113,780,151,638.01 - Step 5: Solve for x
x = 113,780,151,638.01/357,394.85 - Step 6: Final answer
x = 318,359.80
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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.