Finding the Fourth Proportional to 230,936.45, 318,674.12 and 128,953.94
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Solution
The fourth proportional to 230,936.45, 318,674.12 and 128,953.94 is: 177,946.28
Step by Step Solution
- Step 1: Write the proportion equation
230,936.45 : 318,674.12 = 128,953.94 : x - Step 2: Convert to fraction form
230,936.45/318,674.12 = 128,953.94/x - Step 3: Cross multiply
230,936.45x = 318,674.12 × 128,953.94 - Step 4: Simplify right side
230,936.45x = 41,094,281,111.89 - Step 5: Solve for x
x = 41,094,281,111.89/230,936.45 - Step 6: Final answer
x = 177,946.28
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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.