Finding the Fourth Proportional to 272,849.19, 409,270.91 and 106,635.75
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Solution
The fourth proportional to 272,849.19, 409,270.91 and 106,635.75 is: 159,952.50
Step by Step Solution
- Step 1: Write the proportion equation
272,849.19 : 409,270.91 = 106,635.75 : x - Step 2: Convert to fraction form
272,849.19/409,270.91 = 106,635.75/x - Step 3: Cross multiply
272,849.19x = 409,270.91 × 106,635.75 - Step 4: Simplify right side
272,849.19x = 43,642,909,907.85 - Step 5: Solve for x
x = 43,642,909,907.85/272,849.19 - Step 6: Final answer
x = 159,952.50
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1.5x scale
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.