Finding the Fourth Proportional to 276,533.84, 381,653.08 and 155,698.68
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Solution
The fourth proportional to 276,533.84, 381,653.08 and 155,698.68 is: 214,884.66
Step by Step Solution
- Step 1: Write the proportion equation
276,533.84 : 381,653.08 = 155,698.68 : x - Step 2: Convert to fraction form
276,533.84/381,653.08 = 155,698.68/x - Step 3: Cross multiply
276,533.84x = 381,653.08 × 155,698.68 - Step 4: Simplify right side
276,533.84x = 59,422,880,384.69 - Step 5: Solve for x
x = 59,422,880,384.69/276,533.84 - Step 6: Final answer
x = 214,884.66
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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.