Finding the Fourth Proportional to 339,536.48, 509,304.81 and 126,276.53
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Solution
The fourth proportional to 339,536.48, 509,304.81 and 126,276.53 is: 189,414.82
Step by Step Solution
- Step 1: Write the proportion equation
339,536.48 : 509,304.81 = 126,276.53 : x - Step 2: Convert to fraction form
339,536.48/509,304.81 = 126,276.53/x - Step 3: Cross multiply
339,536.48x = 509,304.81 × 126,276.53 - Step 4: Simplify right side
339,536.48x = 64,313,240,941.20 - Step 5: Solve for x
x = 64,313,240,941.20/339,536.48 - Step 6: Final answer
x = 189,414.82
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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.