Finding the Fourth Proportional to 276,149.81, 381,088.95 and 153,643.96
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Solution
The fourth proportional to 276,149.81, 381,088.95 and 153,643.96 is: 212,029.90
Step by Step Solution
- Step 1: Write the proportion equation
276,149.81 : 381,088.95 = 153,643.96 : x - Step 2: Convert to fraction form
276,149.81/381,088.95 = 153,643.96/x - Step 3: Cross multiply
276,149.81x = 381,088.95 × 153,643.96 - Step 4: Simplify right side
276,149.81x = 58,552,015,390.24 - Step 5: Solve for x
x = 58,552,015,390.24/276,149.81 - Step 6: Final answer
x = 212,029.90
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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.