Finding the Fourth Proportional to 202,073.12, 278,812.14 and 130,437.80
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Solution
The fourth proportional to 202,073.12, 278,812.14 and 130,437.80 is: 179,972.69
Step by Step Solution
- Step 1: Write the proportion equation
202,073.12 : 278,812.14 = 130,437.80 : x - Step 2: Convert to fraction form
202,073.12/278,812.14 = 130,437.80/x - Step 3: Cross multiply
202,073.12x = 278,812.14 × 130,437.80 - Step 4: Simplify right side
202,073.12x = 36,367,642,154.89 - Step 5: Solve for x
x = 36,367,642,154.89/202,073.12 - Step 6: Final answer
x = 179,972.69
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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.