Finding the Fourth Proportional to 457,418.40, 631,237.68 and 250,685.88
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Solution
The fourth proportional to 457,418.40, 631,237.68 and 250,685.88 is: 345,946.67
Step by Step Solution
- Step 1: Write the proportion equation
457,418.40 : 631,237.68 = 250,685.88 : x - Step 2: Convert to fraction form
457,418.40/631,237.68 = 250,685.88/x - Step 3: Cross multiply
457,418.40x = 631,237.68 × 250,685.88 - Step 4: Simplify right side
457,418.40x = 158,242,373,299.96 - Step 5: Solve for x
x = 158,242,373,299.96/457,418.40 - Step 6: Final answer
x = 345,946.67
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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.