Finding the Fourth Proportional to 210,965.49, 291,135.11 and 115,470.13
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Solution
The fourth proportional to 210,965.49, 291,135.11 and 115,470.13 is: 159,350.28
Step by Step Solution
- Step 1: Write the proportion equation
210,965.49 : 291,135.11 = 115,470.13 : x - Step 2: Convert to fraction form
210,965.49/291,135.11 = 115,470.13/x - Step 3: Cross multiply
210,965.49x = 291,135.11 × 115,470.13 - Step 4: Simplify right side
210,965.49x = 33,617,408,421.91 - Step 5: Solve for x
x = 33,617,408,421.91/210,965.49 - Step 6: Final answer
x = 159,350.28
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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.