Finding the Fourth Proportional to 314,939.05, 472,128.84 and 122,769.18
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Solution
The fourth proportional to 314,939.05, 472,128.84 and 122,769.18 is: 184,044.73
Step by Step Solution
- Step 1: Write the proportion equation
314,939.05 : 472,128.84 = 122,769.18 : x - Step 2: Convert to fraction form
314,939.05/472,128.84 = 122,769.18/x - Step 3: Cross multiply
314,939.05x = 472,128.84 × 122,769.18 - Step 4: Simplify right side
314,939.05x = 57,962,870,541.15 - Step 5: Solve for x
x = 57,962,870,541.15/314,939.05 - Step 6: Final answer
x = 184,044.73
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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.