Finding the Fourth Proportional to 420,044.08, 579,660.96 and 229,052.56
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Solution
The fourth proportional to 420,044.08, 579,660.96 and 229,052.56 is: 316,092.60
Step by Step Solution
- Step 1: Write the proportion equation
420,044.08 : 579,660.96 = 229,052.56 : x - Step 2: Convert to fraction form
420,044.08/579,660.96 = 229,052.56/x - Step 3: Cross multiply
420,044.08x = 579,660.96 × 229,052.56 - Step 4: Simplify right side
420,044.08x = 132,772,826,820.06 - Step 5: Solve for x
x = 132,772,826,820.06/420,044.08 - Step 6: Final answer
x = 316,092.60
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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.