Finding the Fourth Proportional to 420,260.45, 579,965.92 and 229,273.84
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Solution
The fourth proportional to 420,260.45, 579,965.92 and 229,273.84 is: 316,401.45
Step by Step Solution
- Step 1: Write the proportion equation
420,260.45 : 579,965.92 = 229,273.84 : x - Step 2: Convert to fraction form
420,260.45/579,965.92 = 229,273.84/x - Step 3: Cross multiply
420,260.45x = 579,965.92 × 229,273.84 - Step 4: Simplify right side
420,260.45x = 132,971,014,988.97 - Step 5: Solve for x
x = 132,971,014,988.97/420,260.45 - Step 6: Final answer
x = 316,401.45
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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.