Finding the Fourth Proportional to 201,777.42, 278,479.50 and 130,365.18
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Solution
The fourth proportional to 201,777.42, 278,479.50 and 130,365.18 is: 179,921.17
Step by Step Solution
- Step 1: Write the proportion equation
201,777.42 : 278,479.50 = 130,365.18 : x - Step 2: Convert to fraction form
201,777.42/278,479.50 = 130,365.18/x - Step 3: Cross multiply
201,777.42x = 278,479.50 × 130,365.18 - Step 4: Simplify right side
201,777.42x = 36,304,030,143.81 - Step 5: Solve for x
x = 36,304,030,143.81/201,777.42 - Step 6: Final answer
x = 179,921.17
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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.