Finding the Fourth Proportional to 226,990.16, 340,472.28 and 86,762.96
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Solution
The fourth proportional to 226,990.16, 340,472.28 and 86,762.96 is: 130,139.49
Step by Step Solution
- Step 1: Write the proportion equation
226,990.16 : 340,472.28 = 86,762.96 : x - Step 2: Convert to fraction form
226,990.16/340,472.28 = 86,762.96/x - Step 3: Cross multiply
226,990.16x = 340,472.28 × 86,762.96 - Step 4: Simplify right side
226,990.16x = 29,540,382,810.75 - Step 5: Solve for x
x = 29,540,382,810.75/226,990.16 - Step 6: Final answer
x = 130,139.49
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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.