Finding the Fourth Proportional to 278.40, 418.07 and 232.08
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Solution
The fourth proportional to 278.40, 418.07 and 232.08 is: 348.51
Step by Step Solution
- Step 1: Write the proportion equation
278.40 : 418.07 = 232.08 : x - Step 2: Convert to fraction form
278.40/418.07 = 232.08/x - Step 3: Cross multiply
278.40x = 418.07 × 232.08 - Step 4: Simplify right side
278.40x = 97,024.41 - Step 5: Solve for x
x = 97,024.41/278.40 - Step 6: Final answer
x = 348.51
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.