Finding the Fourth Proportional to 405.06, 558.99 and 239.28
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Solution
The fourth proportional to 405.06, 558.99 and 239.28 is: 330.21
Step by Step Solution
- Step 1: Write the proportion equation
405.06 : 558.99 = 239.28 : x - Step 2: Convert to fraction form
405.06/558.99 = 239.28/x - Step 3: Cross multiply
405.06x = 558.99 × 239.28 - Step 4: Simplify right side
405.06x = 133,755.13 - Step 5: Solve for x
x = 133,755.13/405.06 - Step 6: Final answer
x = 330.21
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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.