Finding the Fourth Proportional to 229,448.50, 316,689.75 and 127,509.09
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Solution
The fourth proportional to 229,448.50, 316,689.75 and 127,509.09 is: 175,990.78
Step by Step Solution
- Step 1: Write the proportion equation
229,448.50 : 316,689.75 = 127,509.09 : x - Step 2: Convert to fraction form
229,448.50/316,689.75 = 127,509.09/x - Step 3: Cross multiply
229,448.50x = 316,689.75 × 127,509.09 - Step 4: Simplify right side
229,448.50x = 40,380,820,647.24 - Step 5: Solve for x
x = 40,380,820,647.24/229,448.50 - Step 6: Final answer
x = 175,990.78
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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.