Finding the Fourth Proportional to 312,865.04, 431,727.17 and 176,880.12
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Solution
The fourth proportional to 312,865.04, 431,727.17 and 176,880.12 is: 244,079.54
Step by Step Solution
- Step 1: Write the proportion equation
312,865.04 : 431,727.17 = 176,880.12 : x - Step 2: Convert to fraction form
312,865.04/431,727.17 = 176,880.12/x - Step 3: Cross multiply
312,865.04x = 431,727.17 × 176,880.12 - Step 4: Simplify right side
312,865.04x = 76,363,952,752.46 - Step 5: Solve for x
x = 76,363,952,752.46/312,865.04 - Step 6: Final answer
x = 244,079.54
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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.