Finding the Fourth Proportional to 261,874.56, 361,389.36 and 148,699.68
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Solution
The fourth proportional to 261,874.56, 361,389.36 and 148,699.68 is: 205,206.96
Step by Step Solution
- Step 1: Write the proportion equation
261,874.56 : 361,389.36 = 148,699.68 : x - Step 2: Convert to fraction form
261,874.56/361,389.36 = 148,699.68/x - Step 3: Cross multiply
261,874.56x = 361,389.36 × 148,699.68 - Step 4: Simplify right side
261,874.56x = 53,738,482,187.40 - Step 5: Solve for x
x = 53,738,482,187.40/261,874.56 - Step 6: Final answer
x = 205,206.96
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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.