Finding the Fourth Proportional to 226,426.10, 339,628.35 and 76,651.70
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Solution
The fourth proportional to 226,426.10, 339,628.35 and 76,651.70 is: 114,973.89
Step by Step Solution
- Step 1: Write the proportion equation
226,426.10 : 339,628.35 = 76,651.70 : x - Step 2: Convert to fraction form
226,426.10/339,628.35 = 76,651.70/x - Step 3: Cross multiply
226,426.10x = 339,628.35 × 76,651.70 - Step 4: Simplify right side
226,426.10x = 26,033,090,395.70 - Step 5: Solve for x
x = 26,033,090,395.70/226,426.10 - Step 6: Final answer
x = 114,973.89
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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.