Finding the Fourth Proportional to 226,763.61, 312,946.71 and 129,983.58
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Solution
The fourth proportional to 226,763.61, 312,946.71 and 129,983.58 is: 179,384.75
Step by Step Solution
- Step 1: Write the proportion equation
226,763.61 : 312,946.71 = 129,983.58 : x - Step 2: Convert to fraction form
226,763.61/312,946.71 = 129,983.58/x - Step 3: Cross multiply
226,763.61x = 312,946.71 × 129,983.58 - Step 4: Simplify right side
226,763.61x = 40,677,933,715.02 - Step 5: Solve for x
x = 40,677,933,715.02/226,763.61 - Step 6: Final answer
x = 179,384.75
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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.