Finding the Fourth Proportional to 314,936.80, 472,405.20 and 115,263.70
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Solution
The fourth proportional to 314,936.80, 472,405.20 and 115,263.70 is: 172,895.55
Step by Step Solution
- Step 1: Write the proportion equation
314,936.80 : 472,405.20 = 115,263.70 : x - Step 2: Convert to fraction form
314,936.80/472,405.20 = 115,263.70/x - Step 3: Cross multiply
314,936.80x = 472,405.20 × 115,263.70 - Step 4: Simplify right side
314,936.80x = 54,451,171,251.24 - Step 5: Solve for x
x = 54,451,171,251.24/314,936.80 - Step 6: Final answer
x = 172,895.55
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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.