Finding the Fourth Proportional to 381,077.08, 571,616.64 and 128,534.92
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Solution
The fourth proportional to 381,077.08, 571,616.64 and 128,534.92 is: 192,802.72
Step by Step Solution
- Step 1: Write the proportion equation
381,077.08 : 571,616.64 = 128,534.92 : x - Step 2: Convert to fraction form
381,077.08/571,616.64 = 128,534.92/x - Step 3: Cross multiply
381,077.08x = 571,616.64 × 128,534.92 - Step 4: Simplify right side
381,077.08x = 73,472,697,664.03 - Step 5: Solve for x
x = 73,472,697,664.03/381,077.08 - Step 6: Final answer
x = 192,802.72
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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.