Finding the Fourth Proportional to 276,239.57, 381,102.67 and 155,353.14
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Solution
The fourth proportional to 276,239.57, 381,102.67 and 155,353.14 is: 214,326.64
Step by Step Solution
- Step 1: Write the proportion equation
276,239.57 : 381,102.67 = 155,353.14 : x - Step 2: Convert to fraction form
276,239.57/381,102.67 = 155,353.14/x - Step 3: Cross multiply
276,239.57x = 381,102.67 × 155,353.14 - Step 4: Simplify right side
276,239.57x = 59,205,496,641.08 - Step 5: Solve for x
x = 59,205,496,641.08/276,239.57 - Step 6: Final answer
x = 214,326.64
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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.