Finding the Fourth Proportional to 420,212.23, 579,889.14 and 229,221.52
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Solution
The fourth proportional to 420,212.23, 579,889.14 and 229,221.52 is: 316,323.66
Step by Step Solution
- Step 1: Write the proportion equation
420,212.23 : 579,889.14 = 229,221.52 : x - Step 2: Convert to fraction form
420,212.23/579,889.14 = 229,221.52/x - Step 3: Cross multiply
420,212.23x = 579,889.14 × 229,221.52 - Step 4: Simplify right side
420,212.23x = 132,923,070,102.29 - Step 5: Solve for x
x = 132,923,070,102.29/420,212.23 - Step 6: Final answer
x = 316,323.66
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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.