Finding the Fourth Proportional to 439.08, 605.93 and 239.91
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Solution
The fourth proportional to 439.08, 605.93 and 239.91 is: 331.07
Step by Step Solution
- Step 1: Write the proportion equation
439.08 : 605.93 = 239.91 : x - Step 2: Convert to fraction form
439.08/605.93 = 239.91/x - Step 3: Cross multiply
439.08x = 605.93 × 239.91 - Step 4: Simplify right side
439.08x = 145,366.25 - Step 5: Solve for x
x = 145,366.25/439.08 - Step 6: Final answer
x = 331.07
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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.