Finding the Fourth Proportional to 210,958.36, 316,440.79 and 68,803.02
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Solution
The fourth proportional to 210,958.36, 316,440.79 and 68,803.02 is: 103,205.59
Step by Step Solution
- Step 1: Write the proportion equation
210,958.36 : 316,440.79 = 68,803.02 : x - Step 2: Convert to fraction form
210,958.36/316,440.79 = 68,803.02/x - Step 3: Cross multiply
210,958.36x = 316,440.79 × 68,803.02 - Step 4: Simplify right side
210,958.36x = 21,772,081,927.93 - Step 5: Solve for x
x = 21,772,081,927.93/210,958.36 - Step 6: Final answer
x = 103,205.59
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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.