Finding the Fourth Proportional to 412.93, 618.99 and 152.74
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Solution
The fourth proportional to 412.93, 618.99 and 152.74 is: 228.96
Step by Step Solution
- Step 1: Write the proportion equation
412.93 : 618.99 = 152.74 : x - Step 2: Convert to fraction form
412.93/618.99 = 152.74/x - Step 3: Cross multiply
412.93x = 618.99 × 152.74 - Step 4: Simplify right side
412.93x = 94,544.53 - Step 5: Solve for x
x = 94,544.53/412.93 - Step 6: Final answer
x = 228.96
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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.