Finding the Fourth Proportional to 431,628.06, 647,263.95 and 147,341.53
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Solution
The fourth proportional to 431,628.06, 647,263.95 and 147,341.53 is: 220,951.49
Step by Step Solution
- Step 1: Write the proportion equation
431,628.06 : 647,263.95 = 147,341.53 : x - Step 2: Convert to fraction form
431,628.06/647,263.95 = 147,341.53/x - Step 3: Cross multiply
431,628.06x = 647,263.95 × 147,341.53 - Step 4: Simplify right side
431,628.06x = 95,368,861,584.99 - Step 5: Solve for x
x = 95,368,861,584.99/431,628.06 - Step 6: Final answer
x = 220,951.49
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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.