Finding the Fourth Proportional to 245,653.68, 368,544.88 and 77,167.20
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Solution
The fourth proportional to 245,653.68, 368,544.88 and 77,167.20 is: 115,771.02
Step by Step Solution
- Step 1: Write the proportion equation
245,653.68 : 368,544.88 = 77,167.20 : x - Step 2: Convert to fraction form
245,653.68/368,544.88 = 77,167.20/x - Step 3: Cross multiply
245,653.68x = 368,544.88 × 77,167.20 - Step 4: Simplify right side
245,653.68x = 28,439,576,463.94 - Step 5: Solve for x
x = 28,439,576,463.94/245,653.68 - Step 6: Final answer
x = 115,771.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.