Finding the Fourth Proportional to 226,238.40, 312,174.18 and 130,726.62
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Solution
The fourth proportional to 226,238.40, 312,174.18 and 130,726.62 is: 180,382.62
Step by Step Solution
- Step 1: Write the proportion equation
226,238.40 : 312,174.18 = 130,726.62 : x - Step 2: Convert to fraction form
226,238.40/312,174.18 = 130,726.62/x - Step 3: Cross multiply
226,238.40x = 312,174.18 × 130,726.62 - Step 4: Simplify right side
226,238.40x = 40,809,475,402.67 - Step 5: Solve for x
x = 40,809,475,402.67/226,238.40 - Step 6: Final answer
x = 180,382.62
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1.5x scale
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.