Finding the Fourth Proportional to 157.28, 235.91 and 49.07
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Solution
The fourth proportional to 157.28, 235.91 and 49.07 is: 73.59
Step by Step Solution
- Step 1: Write the proportion equation
157.28 : 235.91 = 49.07 : x - Step 2: Convert to fraction form
157.28/235.91 = 49.07/x - Step 3: Cross multiply
157.28x = 235.91 × 49.07 - Step 4: Simplify right side
157.28x = 11,574.68 - Step 5: Solve for x
x = 11,574.68/157.28 - Step 6: Final answer
x = 73.59
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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.