Finding the Fourth Proportional to 457,452.71, 631,286.21 and 253,507.02
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Solution
The fourth proportional to 457,452.71, 631,286.21 and 253,507.02 is: 349,840.49
Step by Step Solution
- Step 1: Write the proportion equation
457,452.71 : 631,286.21 = 253,507.02 : x - Step 2: Convert to fraction form
457,452.71/631,286.21 = 253,507.02/x - Step 3: Cross multiply
457,452.71x = 631,286.21 × 253,507.02 - Step 4: Simplify right side
457,452.71x = 160,035,482,704.66 - Step 5: Solve for x
x = 160,035,482,704.66/457,452.71 - Step 6: Final answer
x = 349,840.49
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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.