Finding the Fourth Proportional to 339.84, 468.99 and 208.75
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Solution
The fourth proportional to 339.84, 468.99 and 208.75 is: 288.08
Step by Step Solution
- Step 1: Write the proportion equation
339.84 : 468.99 = 208.75 : x - Step 2: Convert to fraction form
339.84/468.99 = 208.75/x - Step 3: Cross multiply
339.84x = 468.99 × 208.75 - Step 4: Simplify right side
339.84x = 97,901.66 - Step 5: Solve for x
x = 97,901.66/339.84 - Step 6: Final answer
x = 288.08
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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.