Finding the Fourth Proportional to 299,128.66, 448,777.78 and 121,762.96
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Solution
The fourth proportional to 299,128.66, 448,777.78 and 121,762.96 is: 182,678.95
Step by Step Solution
- Step 1: Write the proportion equation
299,128.66 : 448,777.78 = 121,762.96 : x - Step 2: Convert to fraction form
299,128.66/448,777.78 = 121,762.96/x - Step 3: Cross multiply
299,128.66x = 448,777.78 × 121,762.96 - Step 4: Simplify right side
299,128.66x = 54,644,510,875.03 - Step 5: Solve for x
x = 54,644,510,875.03/299,128.66 - Step 6: Final answer
x = 182,678.95
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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.