Finding the Fourth Proportional to 221,595.78, 305,768.43 and 124,794.55
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Solution
The fourth proportional to 221,595.78, 305,768.43 and 124,794.55 is: 172,197.46
Step by Step Solution
- Step 1: Write the proportion equation
221,595.78 : 305,768.43 = 124,794.55 : x - Step 2: Convert to fraction form
221,595.78/305,768.43 = 124,794.55/x - Step 3: Cross multiply
221,595.78x = 305,768.43 × 124,794.55 - Step 4: Simplify right side
221,595.78x = 38,158,231,473.24 - Step 5: Solve for x
x = 38,158,231,473.24/221,595.78 - Step 6: Final answer
x = 172,197.46
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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.