Finding the Fourth Proportional to 420,354.16, 580,083.92 and 229,370.74
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Solution
The fourth proportional to 420,354.16, 580,083.92 and 229,370.74 is: 316,528.99
Step by Step Solution
- Step 1: Write the proportion equation
420,354.16 : 580,083.92 = 229,370.74 : x - Step 2: Convert to fraction form
420,354.16/580,083.92 = 229,370.74/x - Step 3: Cross multiply
420,354.16x = 580,083.92 × 229,370.74 - Step 4: Simplify right side
420,354.16x = 133,054,277,992.50 - Step 5: Solve for x
x = 133,054,277,992.50/420,354.16 - Step 6: Final answer
x = 316,528.99
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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.