Finding the Fourth Proportional to 319,815.75, 441,384.62 and 185,679.75
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Solution
The fourth proportional to 319,815.75, 441,384.62 and 185,679.75 is: 256,260.63
Step by Step Solution
- Step 1: Write the proportion equation
319,815.75 : 441,384.62 = 185,679.75 : x - Step 2: Convert to fraction form
319,815.75/441,384.62 = 185,679.75/x - Step 3: Cross multiply
319,815.75x = 441,384.62 × 185,679.75 - Step 4: Simplify right side
319,815.75x = 81,956,184,967.05 - Step 5: Solve for x
x = 81,956,184,967.05/319,815.75 - Step 6: Final answer
x = 256,260.63
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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.