Finding the Fourth Proportional to 289,235.00, 434,133.07 and 139,580.62
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Solution
The fourth proportional to 289,235.00, 434,133.07 and 139,580.62 is: 209,506.32
Step by Step Solution
- Step 1: Write the proportion equation
289,235.00 : 434,133.07 = 139,580.62 : x - Step 2: Convert to fraction form
289,235.00/434,133.07 = 139,580.62/x - Step 3: Cross multiply
289,235.00x = 434,133.07 × 139,580.62 - Step 4: Simplify right side
289,235.00x = 60,596,561,638.82 - Step 5: Solve for x
x = 60,596,561,638.82/289,235.00 - Step 6: Final answer
x = 209,506.32
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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.