Finding the Fourth Proportional to 466.58, 644.08 and 309.28
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Solution
The fourth proportional to 466.58, 644.08 and 309.28 is: 426.94
Step by Step Solution
- Step 1: Write the proportion equation
466.58 : 644.08 = 309.28 : x - Step 2: Convert to fraction form
466.58/644.08 = 309.28/x - Step 3: Cross multiply
466.58x = 644.08 × 309.28 - Step 4: Simplify right side
466.58x = 199,201.06 - Step 5: Solve for x
x = 199,201.06/466.58 - Step 6: Final answer
x = 426.94
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.