Finding the Fourth Proportional to 276,331.75, 381,337.83 and 157,099.75
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Solution
The fourth proportional to 276,331.75, 381,337.83 and 157,099.75 is: 216,797.66
Step by Step Solution
- Step 1: Write the proportion equation
276,331.75 : 381,337.83 = 157,099.75 : x - Step 2: Convert to fraction form
276,331.75/381,337.83 = 157,099.75/x - Step 3: Cross multiply
276,331.75x = 381,337.83 × 157,099.75 - Step 4: Simplify right side
276,331.75x = 59,908,077,758.54 - Step 5: Solve for x
x = 59,908,077,758.54/276,331.75 - Step 6: Final answer
x = 216,797.66
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1.5x scale
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.