Finding the Fourth Proportional to 202.03, 278.79 and 117.99
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Solution
The fourth proportional to 202.03, 278.79 and 117.99 is: 162.82
Step by Step Solution
- Step 1: Write the proportion equation
202.03 : 278.79 = 117.99 : x - Step 2: Convert to fraction form
202.03/278.79 = 117.99/x - Step 3: Cross multiply
202.03x = 278.79 × 117.99 - Step 4: Simplify right side
202.03x = 32,894.43 - Step 5: Solve for x
x = 32,894.43/202.03 - Step 6: Final answer
x = 162.82
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.