Finding the Fourth Proportional to 207,007.80, 310,511.70 and 127,291.65
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Solution
The fourth proportional to 207,007.80, 310,511.70 and 127,291.65 is: 190,937.48
Step by Step Solution
- Step 1: Write the proportion equation
207,007.80 : 310,511.70 = 127,291.65 : x - Step 2: Convert to fraction form
207,007.80/310,511.70 = 127,291.65/x - Step 3: Cross multiply
207,007.80x = 310,511.70 × 127,291.65 - Step 4: Simplify right side
207,007.80x = 39,525,546,637.31 - Step 5: Solve for x
x = 39,525,546,637.31/207,007.80 - Step 6: Final answer
x = 190,937.48
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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.