Finding the Fourth Proportional to 381,192.08, 571,840.97 and 128,544.98
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Solution
The fourth proportional to 381,192.08, 571,840.97 and 128,544.98 is: 192,835.29
Step by Step Solution
- Step 1: Write the proportion equation
381,192.08 : 571,840.97 = 128,544.98 : x - Step 2: Convert to fraction form
381,192.08/571,840.97 = 128,544.98/x - Step 3: Cross multiply
381,192.08x = 571,840.97 × 128,544.98 - Step 4: Simplify right side
381,192.08x = 73,507,282,549.90 - Step 5: Solve for x
x = 73,507,282,549.90/381,192.08 - Step 6: Final answer
x = 192,835.29
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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.