Finding the Fourth Proportional to 422.98, 583.74 and 245.99
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Solution
The fourth proportional to 422.98, 583.74 and 245.99 is: 339.49
Step by Step Solution
- Step 1: Write the proportion equation
422.98 : 583.74 = 245.99 : x - Step 2: Convert to fraction form
422.98/583.74 = 245.99/x - Step 3: Cross multiply
422.98x = 583.74 × 245.99 - Step 4: Simplify right side
422.98x = 143,595.66 - Step 5: Solve for x
x = 143,595.66/422.98 - Step 6: Final answer
x = 339.49
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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.