Finding the Fourth Proportional to 289,101.44, 433,402.73 and 139,135.41
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Solution
The fourth proportional to 289,101.44, 433,402.73 and 139,135.41 is: 208,583.07
Step by Step Solution
- Step 1: Write the proportion equation
289,101.44 : 433,402.73 = 139,135.41 : x - Step 2: Convert to fraction form
289,101.44/433,402.73 = 139,135.41/x - Step 3: Cross multiply
289,101.44x = 433,402.73 × 139,135.41 - Step 4: Simplify right side
289,101.44x = 60,301,666,533.67 - Step 5: Solve for x
x = 60,301,666,533.67/289,101.44 - Step 6: Final answer
x = 208,583.07
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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.