Finding the Fourth Proportional to 305,734.65, 421,925.95 and 176,668.84
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Solution
The fourth proportional to 305,734.65, 421,925.95 and 176,668.84 is: 243,810.02
Step by Step Solution
- Step 1: Write the proportion equation
305,734.65 : 421,925.95 = 176,668.84 : x - Step 2: Convert to fraction form
305,734.65/421,925.95 = 176,668.84/x - Step 3: Cross multiply
305,734.65x = 421,925.95 × 176,668.84 - Step 4: Simplify right side
305,734.65x = 74,541,170,397.13 - Step 5: Solve for x
x = 74,541,170,397.13/305,734.65 - Step 6: Final answer
x = 243,810.02
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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.