Finding the Fourth Proportional to 210,966.49, 291,136.49 and 115,471.13
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Solution
The fourth proportional to 210,966.49, 291,136.49 and 115,471.13 is: 159,351.66
Step by Step Solution
- Step 1: Write the proportion equation
210,966.49 : 291,136.49 = 115,471.13 : x - Step 2: Convert to fraction form
210,966.49/291,136.49 = 115,471.13/x - Step 3: Cross multiply
210,966.49x = 291,136.49 × 115,471.13 - Step 4: Simplify right side
210,966.49x = 33,617,859,484.53 - Step 5: Solve for x
x = 33,617,859,484.53/210,966.49 - Step 6: Final answer
x = 159,351.66
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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.