Finding the Fourth Proportional to 389,838.09, 537,981.04 and 228,695.88
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Solution
The fourth proportional to 389,838.09, 537,981.04 and 228,695.88 is: 315,602.94
Step by Step Solution
- Step 1: Write the proportion equation
389,838.09 : 537,981.04 = 228,695.88 : x - Step 2: Convert to fraction form
389,838.09/537,981.04 = 228,695.88/x - Step 3: Cross multiply
389,838.09x = 537,981.04 × 228,695.88 - Step 4: Simplify right side
389,838.09x = 123,034,044,676.21 - Step 5: Solve for x
x = 123,034,044,676.21/389,838.09 - Step 6: Final answer
x = 315,602.94
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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.