Finding the Fourth Proportional to 221,697.41, 305,908.85 and 124,887.42
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Solution
The fourth proportional to 221,697.41, 305,908.85 and 124,887.42 is: 172,325.73
Step by Step Solution
- Step 1: Write the proportion equation
221,697.41 : 305,908.85 = 124,887.42 : x - Step 2: Convert to fraction form
221,697.41/305,908.85 = 124,887.42/x - Step 3: Cross multiply
221,697.41x = 305,908.85 × 124,887.42 - Step 4: Simplify right side
221,697.41x = 38,204,166,407.23 - Step 5: Solve for x
x = 38,204,166,407.23/221,697.41 - Step 6: Final answer
x = 172,325.73
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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.