Finding the Fourth Proportional to 420,190.84, 579,867.06 and 229,205.08
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Solution
The fourth proportional to 420,190.84, 579,867.06 and 229,205.08 is: 316,305.03
Step by Step Solution
- Step 1: Write the proportion equation
420,190.84 : 579,867.06 = 229,205.08 : x - Step 2: Convert to fraction form
420,190.84/579,867.06 = 229,205.08/x - Step 3: Cross multiply
420,190.84x = 579,867.06 × 229,205.08 - Step 4: Simplify right side
420,190.84x = 132,908,475,876.67 - Step 5: Solve for x
x = 132,908,475,876.67/420,190.84 - Step 6: Final answer
x = 316,305.03
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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.