Finding the Fourth Proportional to 210,510.62, 290,496.12 and 115,020.62
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Solution
The fourth proportional to 210,510.62, 290,496.12 and 115,020.62 is: 158,723.79
Step by Step Solution
- Step 1: Write the proportion equation
210,510.62 : 290,496.12 = 115,020.62 : x - Step 2: Convert to fraction form
210,510.62/290,496.12 = 115,020.62/x - Step 3: Cross multiply
210,510.62x = 290,496.12 × 115,020.62 - Step 4: Simplify right side
210,510.62x = 33,413,043,829.99 - Step 5: Solve for x
x = 33,413,043,829.99/210,510.62 - Step 6: Final answer
x = 158,723.79
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1.5x scale
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.