Finding the Fourth Proportional to 322,956.80, 445,690.88 and 202,059.52
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Solution
The fourth proportional to 322,956.80, 445,690.88 and 202,059.52 is: 278,848.70
Step by Step Solution
- Step 1: Write the proportion equation
322,956.80 : 445,690.88 = 202,059.52 : x - Step 2: Convert to fraction form
322,956.80/445,690.88 = 202,059.52/x - Step 3: Cross multiply
322,956.80x = 445,690.88 × 202,059.52 - Step 4: Simplify right side
322,956.80x = 90,056,085,281.18 - Step 5: Solve for x
x = 90,056,085,281.18/322,956.80 - Step 6: Final answer
x = 278,848.70
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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.