Finding the Fourth Proportional to 719.94, 1,079.68 and 232.88
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Solution
The fourth proportional to 719.94, 1,079.68 and 232.88 is: 349.24
Step by Step Solution
- Step 1: Write the proportion equation
719.94 : 1,079.68 = 232.88 : x - Step 2: Convert to fraction form
719.94/1,079.68 = 232.88/x - Step 3: Cross multiply
719.94x = 1,079.68 × 232.88 - Step 4: Simplify right side
719.94x = 251,430.33 - Step 5: Solve for x
x = 251,430.33/719.94 - Step 6: Final answer
x = 349.24
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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.