Finding the Fourth Proportional to 274,365.91, 378,639.66 and 153,499.99
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Solution
The fourth proportional to 274,365.91, 378,639.66 and 153,499.99 is: 211,838.21
Step by Step Solution
- Step 1: Write the proportion equation
274,365.91 : 378,639.66 = 153,499.99 : x - Step 2: Convert to fraction form
274,365.91/378,639.66 = 153,499.99/x - Step 3: Cross multiply
274,365.91x = 378,639.66 × 153,499.99 - Step 4: Simplify right side
274,365.91x = 58,121,184,023.60 - Step 5: Solve for x
x = 58,121,184,023.60/274,365.91 - Step 6: Final answer
x = 211,838.21
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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.