Finding the Fourth Proportional to 193.02, 289.65 and 79.02
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Solution
The fourth proportional to 193.02, 289.65 and 79.02 is: 118.58
Step by Step Solution
- Step 1: Write the proportion equation
193.02 : 289.65 = 79.02 : x - Step 2: Convert to fraction form
193.02/289.65 = 79.02/x - Step 3: Cross multiply
193.02x = 289.65 × 79.02 - Step 4: Simplify right side
193.02x = 22,888.14 - Step 5: Solve for x
x = 22,888.14/193.02 - Step 6: Final answer
x = 118.58
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.