Finding the Fourth Proportional to 420,347.84, 580,081.68 and 229,365.20
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Solution
The fourth proportional to 420,347.84, 580,081.68 and 229,365.20 is: 316,524.88
Step by Step Solution
- Step 1: Write the proportion equation
420,347.84 : 580,081.68 = 229,365.20 : x - Step 2: Convert to fraction form
420,347.84/580,081.68 = 229,365.20/x - Step 3: Cross multiply
420,347.84x = 580,081.68 × 229,365.20 - Step 4: Simplify right side
420,347.84x = 133,050,550,549.54 - Step 5: Solve for x
x = 133,050,550,549.54/420,347.84 - Step 6: Final answer
x = 316,524.88
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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.