Finding the Fourth Proportional to 329,731.84, 455,036.16 and 202,343.68
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Solution
The fourth proportional to 329,731.84, 455,036.16 and 202,343.68 is: 279,238.10
Step by Step Solution
- Step 1: Write the proportion equation
329,731.84 : 455,036.16 = 202,343.68 : x - Step 2: Convert to fraction form
329,731.84/455,036.16 = 202,343.68/x - Step 3: Cross multiply
329,731.84x = 455,036.16 × 202,343.68 - Step 4: Simplify right side
329,731.84x = 92,073,691,147.47 - Step 5: Solve for x
x = 92,073,691,147.47/329,731.84 - Step 6: Final answer
x = 279,238.10
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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.