Finding the Fourth Proportional to 285,218.15, 393,477.47 and 171,977.99
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Solution
The fourth proportional to 285,218.15, 393,477.47 and 171,977.99 is: 237,255.11
Step by Step Solution
- Step 1: Write the proportion equation
285,218.15 : 393,477.47 = 171,977.99 : x - Step 2: Convert to fraction form
285,218.15/393,477.47 = 171,977.99/x - Step 3: Cross multiply
285,218.15x = 393,477.47 × 171,977.99 - Step 4: Simplify right side
285,218.15x = 67,669,463,541.00 - Step 5: Solve for x
x = 67,669,463,541.00/285,218.15 - Step 6: Final answer
x = 237,255.11
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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.