Finding the Fourth Proportional to 261.77, 390.99 and 250.02
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Solution
The fourth proportional to 261.77, 390.99 and 250.02 is: 373.45
Step by Step Solution
- Step 1: Write the proportion equation
261.77 : 390.99 = 250.02 : x - Step 2: Convert to fraction form
261.77/390.99 = 250.02/x - Step 3: Cross multiply
261.77x = 390.99 × 250.02 - Step 4: Simplify right side
261.77x = 97,756.26 - Step 5: Solve for x
x = 97,756.26/261.77 - Step 6: Final answer
x = 373.45
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.