Finding the Fourth Proportional to 261,984.68, 361,538.86 and 142,752.68
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Solution
The fourth proportional to 261,984.68, 361,538.86 and 142,752.68 is: 196,998.70
Step by Step Solution
- Step 1: Write the proportion equation
261,984.68 : 361,538.86 = 142,752.68 : x - Step 2: Convert to fraction form
261,984.68/361,538.86 = 142,752.68/x - Step 3: Cross multiply
261,984.68x = 361,538.86 × 142,752.68 - Step 4: Simplify right side
261,984.68x = 51,610,641,189.14 - Step 5: Solve for x
x = 51,610,641,189.14/261,984.68 - Step 6: Final answer
x = 196,998.70
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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.