Finding the Fourth Proportional to 285,356.21, 427,904.91 and 107,737.20
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Solution
The fourth proportional to 285,356.21, 427,904.91 and 107,737.20 is: 161,556.95
Step by Step Solution
- Step 1: Write the proportion equation
285,356.21 : 427,904.91 = 107,737.20 : x - Step 2: Convert to fraction form
285,356.21/427,904.91 = 107,737.20/x - Step 3: Cross multiply
285,356.21x = 427,904.91 × 107,737.20 - Step 4: Simplify right side
285,356.21x = 46,101,276,869.65 - Step 5: Solve for x
x = 46,101,276,869.65/285,356.21 - Step 6: Final answer
x = 161,556.95
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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.